How to use Custom Key/Header with MobileBOT™ Defense

Last updated July 9, 2026 by Appdome

This Knowledge Base article describes how to use Appdome’s AI in your CI/CD pipeline to continuously deliver plugins that Use Custom Key/Header in Mobile apps.

What is Custom Key/Header?

Custom Key/Header is a MobileBOT™ Defense capability that allows developers to securely associate application-specific key/value pairs with protected API requests. These values can represent dynamic application data such as session identifiers, transaction identifiers, user context, AI prompts, or any other application-generated information that should be protected from tampering.

How Appdome Protects Mobile Apps Using Custom Key/Header?

Custom Key/Header enhances mobile application security by allowing developers to include application-specific key/value pairs in protected requests. Appdome captures these values at runtime and digitally signs them before they are transmitted to backend services.

Backend services or Web Application Firewalls (WAFs) can validate the Appdome digital signature to ensure that the custom values have not been modified after leaving the protected application. If any signed value is altered during transit, signature validation fails, allowing the backend to reject the request.

This mechanism enables organizations to securely transmit application-specific metadata while protecting it from tampering, unauthorized modification, and replay by attackers.

Providing Custom Key/Header Values

Custom Key/Header values can be supplied using one of two supported methods:

• Input Threat-Events™, by updating the Custom Key/Header map from within the application.

• Directly appending the required header when using the MobileBOT™ Defense per-API implementation.

Both approaches provide the same protection because Appdome captures the supplied values at runtime and digitally signs them before they are transmitted to backend services.

The following examples demonstrate how to provide Custom Key/Header values using Input Threat-Events™.

Note: Input Threat-Events™ are fully supported on multi-platform frameworks such as React Native, Flutter, and Cordova. To use this capability, developers should implement a native bridge that passes the required values to the native Appdome APIs.

Backend Validation

Appdome digitally signs all protected Custom Key/Header values before transmitting them to backend services. To enforce this protection, backend services or a Web Application Firewall (WAF) must validate the Appdome digital signature before trusting or processing the received values. Requests containing invalid signatures or modified payloads should be rejected.

Example Use Case: Preventing Prompt Injection

Applications communicating with AI or LLM services often send prompts to backend APIs. By mapping the prompt to a Custom Key/Header, Appdome digitally signs the original prompt before it leaves the protected application.

If an attacker intercepts the request and modifies the prompt before it reaches the backend, the Appdome digital signature will no longer match the modified content. Backend validation detects the tampering and rejects the request, effectively preventing prompt injection attacks.

Java

// Define the API host and header map
String host = "<API_HOST_PLACEHOLDER>";

Map<String, String> headerMap = new HashMap<>();
headerMap.put("<HEADER_KEY_PLACEHOLDER>", "<HEADER_VALUE_PLACEHOLDER>");

// Create a new intent with the action "UpdateMBDMap"
Intent intent = new Intent("UpdateMBDMap");

// Add the host
intent.putExtra("host", host);

// Add the header key-value pairs
for (Map.Entry<String, String> entry : headerMap.entrySet()) {
    intent.putExtra(entry.getKey(), entry.getValue());
}

// Get the application's context
Context context = getApplicationContext();

// Set the package name for the intent
intent.setPackage(context.getPackageName());

// Send the broadcast with the intent
context.sendBroadcast(intent);

Kotlin

val host = "<API_HOST_PLACEHOLDER>"

val headerMap = mapOf(
    "<HEADER_KEY_PLACEHOLDER>" to "<HEADER_VALUE_PLACEHOLDER>"
)

val intent = Intent("UpdateMBDMap")

intent.putExtra("host", host)

headerMap.forEach { (key, value) ->
    intent.putExtra(key, value)
}

val context = applicationContext
intent.`package` = context.packageName

// Sending information back to Appdome
context.sendBroadcast(intent)

Xamarin / MAUI Android (C#)

string host = "<API_HOST_PLACEHOLDER>";

Dictionary<string, string> headerMap = new Dictionary<string, string>
{
    { "<HEADER_KEY_PLACEHOLDER>", "<HEADER_VALUE_PLACEHOLDER>" }
};

// Create a new intent with the action "UpdateMBDMap"
Intent intent = new Intent("UpdateMBDMap");

// Add the host
intent.PutExtra("host", host);

// Add the header key-value pairs
foreach (KeyValuePair<string, string> entry in headerMap)
{
    intent.PutExtra(entry.Key, entry.Value);
}

// Set the package name for the intent
intent.SetPackage(ApplicationContext.PackageName);

// Send the broadcast with the intent
ApplicationContext.SendBroadcast(intent);

Objective-C

NSString *host = @"<API_HOST_PLACEHOLDER>";

NSDictionary *userInfo = @{
    @"host": host,
    @"<HEADER_KEY_PLACEHOLDER>": @"<HEADER_VALUE_PLACEHOLDER>"
};

// Sending information back to Appdome
[[NSNotificationCenter defaultCenter] postNotificationName:@"UpdateMBDMap"
                                                    object:nil
                                                  userInfo:userInfo];

Swift

let host = "<API_HOST_PLACEHOLDER>"

let userInfo = [
    "host": host,
    "<HEADER_KEY_PLACEHOLDER>": "<HEADER_VALUE_PLACEHOLDER>"
]

// Sending information back to Appdome
NotificationCenter.default.post(
    name: Notification.Name("UpdateMBDMap"),
    object: nil,
    userInfo: userInfo
)

Xamarin / MAUI iOS (C#)

string host = "<API_HOST_PLACEHOLDER>";

// Create a dictionary to hold the data
NSDictionary userInfo = new NSDictionary(
    "host", host,
    "<HEADER_KEY_PLACEHOLDER>", "<HEADER_VALUE_PLACEHOLDER>"
);

// Post a notification with the data
NSNotificationCenter.DefaultCenter.PostNotificationName("UpdateMBDMap", null, userInfo);

Prerequisites for Using Appdome's Custom Key/Header Plugins:

To use Appdome’s mobile app security build system to Use Custom Key/Header , you’ll need:

Appdome account (create a free Appdome account here)
A license for Custom Key/Header
Mobile App (.ipa for iOS, or .apk or .aab for Android)
Signing Credentials (see Signing Secure Android apps and Signing Secure iOS apps)

How to Implement Use Custom Key/Header in Mobile Apps Using Appdome

On Appdome, follow these 3 simple steps to create self-defending Mobile Apps that Use Custom Key/Header without an SDK or gateway:

Designate the Mobile App to be protected.
1. Upload an app via the Appdome Mobile Defense platform GUI or via Appdome’s DEV-API or CI/CD Plugins.
2. Mobile App Formats: .ipa for iOS, or .apk or .aab for Android
3. Custom Key/Header is compatible with: Obj-C, Java, JS, C#, C++, Swift, Kotlin, Flutter, React Native, Unity, Xamarin, and more.
Select the defense: Custom Key/Header.

Create and name the Fusion Set (security template) that will contain the Custom Key/Header feature as shown below:

Figure 1: Fusion Set that will contain the Custom Key/Header feature

Follow the steps in Sections 2.2-2.2.2 of this article to add the Custom Key/Header feature to your Fusion Set via the Appdome Console.

When you select the Custom Key/Header you'll notice that the Fusion Set you created in step 2.1 now bears the icon of the protection category that contains Custom Key/Header.

Figure 2: Fusion Set that displays the newly added Custom Key/Header protection
Note: Annotating the Fusion Set to identify the protection(s) selected is optional only (not mandatory).

Open the Fusion Set Detail Summary by clicking the “...” symbol on the far-right corner of the Fusion Set. Copy the Fusion Set ID from the Fusion Set Detail Summary (as shown below):

Figure 3: Fusion Set Detail Summary

Follow the instructions below to use the Fusion Set ID inside any standard mobile DevOps or CI/CD toolkit like Bitrise, Jenkins, Travis, Team City, Circle CI or other system:

Refer to the Appdome API Reference Guide for API building instructions.

Look for sample APIs in Appdome’s GitHub Repository.

Add the Custom Key/Header feature to your security template.

Navigate to Build > API & Bot Protection tab > MobileBOT™ Defense section in the Appdome Console.
Like all other options in ONEShield™, Custom Key/Header is turned on by default, as shown below:
Figure 4: Selecting Custom Key/Header
Note: The App Compromise Notification contains an easy to follow default remediation path for the mobile app end user. You can customize this message as required to achieve brand specific support, workflow or other messaging.

Toggle On > Custom Key/Header.

Figure 4: Selecting Use Custom Key/Header

Initiate the build command either by clicking Build My App at the bottom of the Build Workflow (shown in Figure 4) or via your CI/CD as described in Section 2.1.4.

Congratulations! The Custom Key/Header protection is now added to the mobile app

Certify the Custom Key/Header feature in Mobile Apps

After building Custom Key/Header, Appdome generates a Certified Secure™ certificate to guarantee that the Custom Key/Header protection has been added and is protecting the app. To verify that the Custom Key/Header protection has been added to the mobile app, locate the protection in the Certified Secure™ certificate as shown below:

Figure 5: Certified Secure™ certificate

Each Certified Secure™ certificate provides DevOps and DevSecOps organizations the entire workflow summary, audit trail of each build, and proof of protection that Custom Key/Header has been added to each Mobile app. Certified Secure provides instant and in-line DevSecOps compliance certification that Custom Key/Header and other mobile app security features are in each build of the mobile app.

Using Threat-Events™ for Custom Key/Header Intelligence and Control in Mobile Apps

Appdome Threat-Events™ provides consumable in-app mobile app attack intelligence and defense control when Custom Key/Header is detected. To consume and use Threat-Events™ for Custom Key/Header in Mobile Apps, use AddObserverForName in Notification Center, and the code samples for Threat-Events™ for Custom Key/Header shown below.

The specifications and options for Threat-Events™ for Custom Key/Header are:

Threat-Event™ Elements Use Custom Key/Header Method Detail

Appdome Feature Name Custom Key/Header

Threat-Event Mode

OFF, IN-APP DEFENSE Appdome detects, defends and notifies user (standard OS dialog) using customizable messaging.

ON, IN-APP DETECTION Appdome detects the attack or threat and passes the event in a standard format to the app for processing (app chooses how and when to enforce).

ON, IN-APP DEFENSE Uses Appdome Enforce mode for any attack or threat and passes the event in a standard format to the app for processing (gather intel on attacks and threats without losing any protection).

Certified Secure™ Threat Event Check x

Visible in ThreatScope™ x

Developer Parameters for Using Custom Key/Header Threat-Event™

Threat-Event NAME

Threat-Event DATA reasonData

Threat-Event CODE reasonCode

Threat-Event SCORE
currentThreatEventScore Current Threat-Event score

threatEventsScore Total Threat-events score

Threat-Event Context Keys

Timestamp The exact time the threat event was triggered, recorded in milliseconds since epoch

message Message displayed for the user on event

externalID The external ID of the event which can be listened via Threat Events

osVersion OS version of the current device

deviceModel Current device model

deviceManufacturer The manufacturer of the current device

fusedAppToken The task ID of the Appdome fusion of the currently running app

kernelInfo Info about the kernel: system name, node name, release, version and machine.

carrierPlmn PLMN of the device. Only available for Android devices.

deviceID Current device ID

reasonCode Reason code of the occurred event

deviceBrand Brand of the device

deviceBoard Board of the device

buildUser Build user

buildHost Build host

sdkVersion Sdk version

threatCode The last six characters of the threat code specify the OS, allowing the Threat Resolution Center to address the attack on the affected device.

With Threat-Events™ enabled (turned ON), Mobile developers can get detailed attack intelligence and granular defense control in Mobile applications and create amazing user experiences for all mobile end users when Custom Key/Header is detected.

The following is a code sample for native Mobile apps, which uses all values in the specification above for Custom Key/Header:

Important! Replace all placeholder instances of <Context Key> with the specific name of your threat event context key across all language examples. This is crucial to ensure your code functions correctly with the intended event data. For example, The <Context Key> could be the message, externalID, OS Version, reason code, etc.

IntentFilter intentFilter = new IntentFilter(); intentFilter.addAction(""); BroadcastReceiver threatEventReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String message = intent.getStringExtra("message"); // Message shown to the user String reasonData = intent.getStringExtra("reasonData"); // Threat detection cause String reasonCode = intent.getStringExtra("reasonCode"); // Event reason code // Current threat event score String currentThreatEventScore = intent.getStringExtra("currentThreatEventScore"); // Total threat events score String threatEventsScore = intent.getStringExtra("threatEventsScore"); // Replace '' with your specific event context key // String variable = intent.getStringExtra(""); // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) } }; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) { registerReceiver(threatEventReceiver, intentFilter, Context.RECEIVER_NOT_EXPORTED); } else { registerReceiver(threatEventReceiver, intentFilter); }

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IntentFilter intentFilter = new IntentFilter();
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intentFilter.addAction("");
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BroadcastReceiver threatEventReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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String message = intent.getStringExtra("message"); // Message shown to the user
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String reasonData = intent.getStringExtra("reasonData"); // Threat detection cause
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String reasonCode = intent.getStringExtra("reasonCode"); // Event reason code
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// Current threat event score
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String currentThreatEventScore = intent.getStringExtra("currentThreatEventScore");
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// Total threat events score
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String threatEventsScore = intent.getStringExtra("threatEventsScore");
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// Replace '<Context Key>' with your specific event context key
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// String variable = intent.getStringExtra("<Context Key>");
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// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
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}
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};
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
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registerReceiver(threatEventReceiver, intentFilter, Context.RECEIVER_NOT_EXPORTED);
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} else {
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registerReceiver(threatEventReceiver, intentFilter);
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}

val intentFilter = IntentFilter() intentFilter.addAction("") val threatEventReceiver = object : BroadcastReceiver() { override fun onReceive(context: Context?, intent: Intent?) { var message = intent?.getStringExtra("message") // Message shown to the user var reasonData = intent?.getStringExtra("reasonData") // Threat detection cause var reasonCode = intent?.getStringExtra("reasonCode") // Event reason code // Current threat event score var currentThreatEventScore = intent?.getStringExtra("currentThreatEventScore") // Total threat events score var threatEventsScore = intent?.getStringExtra("threatEventsScore") // Replace '' with your specific event context key // var variable = intent?.getStringExtra("") // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) } } if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) { registerReceiver(threatEventReceiver, intentFilter, Context.RECEIVER_NOT_EXPORTED) } else { registerReceiver(threatEventReceiver, intentFilter) }

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val intentFilter = IntentFilter()
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intentFilter.addAction("")
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val threatEventReceiver = object : BroadcastReceiver() {
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override fun onReceive(context: Context?, intent: Intent?) {
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var message = intent?.getStringExtra("message") // Message shown to the user
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var reasonData = intent?.getStringExtra("reasonData") // Threat detection cause
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var reasonCode = intent?.getStringExtra("reasonCode") // Event reason code
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// Current threat event score
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var currentThreatEventScore = intent?.getStringExtra("currentThreatEventScore")
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// Total threat events score
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var threatEventsScore = intent?.getStringExtra("threatEventsScore")
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// Replace '<Context Key>' with your specific event context key
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// var variable = intent?.getStringExtra("<Context Key>")
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// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
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}
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}
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
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registerReceiver(threatEventReceiver, intentFilter, Context.RECEIVER_NOT_EXPORTED)
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} else {
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registerReceiver(threatEventReceiver, intentFilter)
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}

let center = NotificationCenter.default center.addObserver(forName: Notification.Name(""), object: nil, queue: nil) { (note) in guard let usrInf = note.userInfo else { return } let message = usrInf["message"]; // Message shown to the user let reasonData = usrInf["reasonData"]; // Threat detection cause let reasonCode = usrInf["reasonCode"]; // Event reason code // Current threat event score let currentThreatEventScore = usrInf["currentThreatEventScore"]; // Total threat events score let threatEventsScore = usrInf["threatEventsScore"]; // Replace '' with your specific event context key // let variable = usrInf[""]; // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) }

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let center = NotificationCenter.default
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center.addObserver(forName: Notification.Name(""), object: nil, queue: nil) { (note) in
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guard let usrInf = note.userInfo else {
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return
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}
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let message = usrInf["message"]; // Message shown to the user
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let reasonData = usrInf["reasonData"]; // Threat detection cause
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let reasonCode = usrInf["reasonCode"]; // Event reason code
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// Current threat event score
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let currentThreatEventScore = usrInf["currentThreatEventScore"];
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// Total threat events score
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let threatEventsScore = usrInf["threatEventsScore"];
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// Replace '<Context Key>' with your specific event context key
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// let variable = usrInf["<Context Key>"];
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// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
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}

[[NSNotificationCenter defaultCenter] addObserverForName: @"" object:nil queue:nil usingBlock:^(NSNotification *org_note) { __block NSNotification *note = org_note; dispatch_async(dispatch_get_main_queue(), ^(void) { // Message shown to the user NSString *message = [[note userInfo] objectForKey:@"message"]; // Threat detection cause NSString *reasonData = [[note userInfo] objectForKey:@"reasonData"]; // Event reason code NSString *reasonCode = [[note userInfo] objectForKey:@"reasonCode"]; // Current threat event score NSString *currentThreatEventScore = [[note userInfo] objectForKey:@"currentThreatEventScore"]; // Total threat events score NSString *threatEventsScore = [[note userInfo] objectForKey:@"threatEventsScore"]; // Replace '' with your specific event context key // NSString *variable = [[note userInfo] objectForKey:@""]; // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) }); }];

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[[NSNotificationCenter defaultCenter] addObserverForName: @"" object:nil queue:nil usingBlock:^(NSNotification *org_note) {
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__block NSNotification *note = org_note;
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dispatch_async(dispatch_get_main_queue(), ^(void) {
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// Message shown to the user
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NSString *message = [[note userInfo] objectForKey:@"message"];
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// Threat detection cause
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NSString *reasonData = [[note userInfo] objectForKey:@"reasonData"];
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// Event reason code
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NSString *reasonCode = [[note userInfo] objectForKey:@"reasonCode"];
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// Current threat event score
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NSString *currentThreatEventScore = [[note userInfo] objectForKey:@"currentThreatEventScore"];
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// Total threat events score
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NSString *threatEventsScore = [[note userInfo] objectForKey:@"threatEventsScore"];
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// Replace '<Context Key>' with your specific event context key
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// NSString *variable = [[note userInfo] objectForKey:@"<Context Key>"];
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// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
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});
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}];

const { ADDevEvents } = NativeModules; const aDDevEvents = new NativeEventEmitter(ADDevEvents); function registerToDevEvent(action, callback) { NativeModules.ADDevEvents.registerForDevEvent(action); aDDevEvents.addListener(action, callback); } export function registerToAllEvents() { registerToDevEvent( "", (userinfo) => Alert.alert(JSON.stringify(userinfo)) var message = userinfo["message"] // Message shown to the user var reasonData = userinfo["reasonData"] // Threat detection cause var reasonCode = userinfo["reasonCode"] // Event reason code // Current threat event score var currentThreatEventScore = userinfo["currentThreatEventScore"] // Total threat events score var threatEventsScore = userinfo["threatEventsScore"] // Replace '' with your specific event context key // var variable = userinfo[""] // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) ); }

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const { ADDevEvents } = NativeModules;
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const aDDevEvents = new NativeEventEmitter(ADDevEvents);
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function registerToDevEvent(action, callback) {
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NativeModules.ADDevEvents.registerForDevEvent(action);
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aDDevEvents.addListener(action, callback);
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}
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export function registerToAllEvents() {
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registerToDevEvent(
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"",
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(userinfo) => Alert.alert(JSON.stringify(userinfo))
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var message = userinfo["message"] // Message shown to the user
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var reasonData = userinfo["reasonData"] // Threat detection cause
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var reasonCode = userinfo["reasonCode"] // Event reason code
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// Current threat event score
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var currentThreatEventScore = userinfo["currentThreatEventScore"]
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// Total threat events score
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var threatEventsScore = userinfo["threatEventsScore"]
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// Replace '<Context Key>' with your specific event context key
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// var variable = userinfo["<Context Key>"]
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// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
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);
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}

RegisterReceiver(new ThreatEventReceiver(), new IntentFilter("")); class ThreatEventReceiver : BroadcastReceiver { public override void OnReceive(Context context, Intent intent) { String message = intent.GetStringExtra("message"); // Message shown to the user String reasonData = intent.GetStringExtra("reasonData"); // Threat detection cause String reasonCode = intent.GetStringExtra("reasonCode"); // Event reason code // Current threat event score String currentThreatEventScore = intent.GetStringExtra("currentThreatEventScore"); // Total threat events score String threatEventsScore = intent.GetStringExtra("threatEventsScore"); // Replace '' with your specific event context key // String variable = intent.GetStringExtra(""); // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) } }

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RegisterReceiver(new ThreatEventReceiver(), new IntentFilter(""));
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class ThreatEventReceiver : BroadcastReceiver
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{
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public override void OnReceive(Context context, Intent intent)
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{
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// Message shown to the user
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String message = intent.GetStringExtra("message");
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// Threat detection cause
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String reasonData = intent.GetStringExtra("reasonData");
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// Event reason code
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String reasonCode = intent.GetStringExtra("reasonCode");
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// Current threat event score
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String currentThreatEventScore = intent.GetStringExtra("currentThreatEventScore");
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// Total threat events score
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String threatEventsScore = intent.GetStringExtra("threatEventsScore");
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// Replace '<Context Key>' with your specific event context key
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// String variable = intent.GetStringExtra("<Context Key>");
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// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
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}
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}

NSNotificationCenter.DefaultCenter.AddObserver( (NSString)"", // Threat-Event Identifier delegate (NSNotification notification) { // Message shown to the user var message = notification.UserInfo.ObjectForKey("message"); // Threat detection cause var reasonData = notification.UserInfo.ObjectForKey("reasonData"); // Event reason code var reasonCode = notification.UserInfo.ObjectForKey("reasonCode"); // Current threat event score var currentThreatEventScore = notification.UserInfo.ObjectForKey("currentThreatEventScore"); // Total threat events score var threatEventsScore = notification.UserInfo.ObjectForKey("threatEventsScore"); // Replace '' with your specific event context key // var variable = notification.UserInfo.ObjectForKey(""); // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) } );

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NSNotificationCenter.DefaultCenter.AddObserver(
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(NSString)"", // Threat-Event Identifier
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delegate (NSNotification notification)
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{
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// Message shown to the user
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var message = notification.UserInfo.ObjectForKey("message");
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// Threat detection cause
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var reasonData = notification.UserInfo.ObjectForKey("reasonData");
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// Event reason code
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var reasonCode = notification.UserInfo.ObjectForKey("reasonCode");
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// Current threat event score
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var currentThreatEventScore = notification.UserInfo.ObjectForKey("currentThreatEventScore");
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// Total threat events score
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var threatEventsScore = notification.UserInfo.ObjectForKey("threatEventsScore");
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// Replace '<Context Key>' with your specific event context key
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// var variable = notification.UserInfo.ObjectForKey("<Context Keys>");
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// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
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}
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);

window.broadcaster.addEventListener("", function(userInfo) { var message = userInfo.message // Message shown to the user var reasonData = userInfo.reasonData // Threat detection cause var reasonCode = userInfo.reasonCode // Event reason code // Current threat event score var currentThreatEventScore = userInfo.currentThreatEventScore // Total threat events score var threatEventsScore = userInfo.threatEventsScore // Replace '' with your specific event context key // var variable = userInfo. // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) });

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window.broadcaster.addEventListener("", function(userInfo) {
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var message = userInfo.message // Message shown to the user
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var reasonData = userInfo.reasonData // Threat detection cause
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var reasonCode = userInfo.reasonCode // Event reason code
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// Current threat event score
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var currentThreatEventScore = userInfo.currentThreatEventScore
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// Total threat events score
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var threatEventsScore = userInfo.threatEventsScore
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// Replace '<Context Key>' with your specific event context key
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// var variable = userInfo.<Context Keys>
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// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
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});

import 'dart:async'; import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; class PlatformChannel extends StatefulWidget { const PlatformChannel({super.key}); @override State createState() => _PlatformChannelState(); } class _PlatformChannelState extends State { // Replace with your EventChannel name static const String _eventChannelName = ""; static const EventChannel _eventChannel = EventChannel(_eventChannelName); @override void initState() { super.initState(); _eventChannel.receiveBroadcastStream().listen(_onEvent, onError: _onError); } void _onEvent(Object? event) { setState(() { // Adapt this section based on your specific event data structure var eventData = event as Map; // Example: Accessing 'externalID' field from the event var externalID = eventData['externalID']; // Customize the rest of the fields based on your event structure String message = eventData['message']; // Message shown to the user String reasonData = eventData['reasonData']; // Threat detection cause String reasonCode = eventData['reasonCode']; // Event reason code // Current threat event score String currentThreatEventScore = eventData['currentThreatEventScore']; // Total threat events score String threatEventsScore = eventData['threatEventsScore']; // Replace '' with your specific event context key // String variable = eventData['']; }); } // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) }

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import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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class PlatformChannel extends StatefulWidget {
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const PlatformChannel({super.key});
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@override
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State<PlatformChannel> createState() => _PlatformChannelState();
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}
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class _PlatformChannelState extends State<PlatformChannel> {
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// Replace with your EventChannel name
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static const String _eventChannelName = "";
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static const EventChannel _eventChannel = EventChannel(_eventChannelName);
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@override
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void initState() {
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super.initState();
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_eventChannel.receiveBroadcastStream().listen(_onEvent, onError: _onError);
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}
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void _onEvent(Object? event) {
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setState(() {
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// Adapt this section based on your specific event data structure
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var eventData = event as Map;
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// Example: Accessing 'externalID' field from the event
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var externalID = eventData['externalID'];
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// Customize the rest of the fields based on your event structure
32
String message = eventData['message']; // Message shown to the user
33
String reasonData = eventData['reasonData']; // Threat detection cause
34
String reasonCode = eventData['reasonCode']; // Event reason code
35

36
// Current threat event score
37
String currentThreatEventScore = eventData['currentThreatEventScore'];
38

39
// Total threat events score
40
String threatEventsScore = eventData['threatEventsScore'];
41

42
// Replace '<Context Key>' with your specific event context key
43
// String variable = eventData['<Context Keys>'];
44
});
45
}
46

47
// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
48
}

Using Appdome, there are no development or coding prerequisites to build secured Mobile Apps by using Custom Key/Header. There is no SDK and no library to code or implement in the app and no gateway to deploy in your network. All protections are built into each app and the resulting app is self-defending and self-protecting.

Releasing and Publishing Mobile Apps with Custom Key/Header

After successfully securing your app by using Appdome, there are several available options to complete your project, depending on your app lifecycle or workflow. These include:

Customizing, Configuring & Branding Secure Mobile Apps.

Deploying/Publishing Secure mobile apps to Public or Private app stores.

Releasing Secured Android & iOS Apps built on Appdome.

Related Articles:

How to Validate a Nonce Payload with Appdome MobileBOT™ Defense

How to Use Payload Timestamps In MobileBOT™ Defense

How to Use Appdome ThreatID™ In MobileBOT™ Defense

How to Use Appdome AppID In MobileBOT™ Defense

How Do I Learn More?

If you have any questions, please send them our way at support.appdome.com or via the chat window on the Appdome platform.

Thank you!

Thanks for visiting Appdome! Our mission is to secure every app on the planet by making mobile app security easy. We hope we’re living up to the mission with your project.

How to use Custom Key/Header with MobileBOT™ Defense

What is Custom Key/Header?

How Appdome Protects Mobile Apps Using Custom Key/Header?

Providing Custom Key/Header Values

Java

Kotlin

Xamarin / MAUI Android (C#)

Objective-C

Swift

Xamarin / MAUI iOS (C#)

Prerequisites for Using Appdome's Custom Key/Header Plugins:

How to Implement Use Custom Key/Header in Mobile Apps Using Appdome

Designate the Mobile App to be protected.

Upload an app via the Appdome Mobile Defense platform GUI or via Appdome’s DEV-API or CI/CD Plugins.

Select the defense: Custom Key/Header.

Add the Custom Key/Header feature to your security template.

Certify the Custom Key/Header feature in Mobile Apps

Using Threat-Events™ for Custom Key/Header Intelligence and Control in Mobile Apps

Related Articles:

How Do I Learn More?

Thank you!

The Rise of Mobile Enterprise Security

Q&A with Jan Sysmans: The Biggest Challenges Facing Mobile App Security Today

How B2B App Developers Secure Apps In the Agentic Age

Why AI-Powered Fraud Requires Coordinated Mobile App Security in Financial Services

Threat-Event™ Elements	Use Custom Key/Header Method Detail
Appdome Feature Name	Custom Key/Header
Threat-Event Mode
OFF, IN-APP DEFENSE	Appdome detects, defends and notifies user (standard OS dialog) using customizable messaging.
ON, IN-APP DETECTION	Appdome detects the attack or threat and passes the event in a standard format to the app for processing (app chooses how and when to enforce).
ON, IN-APP DEFENSE	Uses Appdome Enforce mode for any attack or threat and passes the event in a standard format to the app for processing (gather intel on attacks and threats without losing any protection).
Certified Secure™ Threat Event Check	x
Visible in ThreatScope™	x
Developer Parameters for Using Custom Key/Header Threat-Event™
Threat-Event NAME
Threat-Event DATA	reasonData
Threat-Event CODE	reasonCode
Threat-Event SCORE
currentThreatEventScore	Current Threat-Event score
threatEventsScore	Total Threat-events score

Threat-Event Context Keys
Timestamp	The exact time the threat event was triggered, recorded in milliseconds since epoch
message	Message displayed for the user on event
externalID	The external ID of the event which can be listened via Threat Events
osVersion	OS version of the current device
deviceModel	Current device model
deviceManufacturer	The manufacturer of the current device
fusedAppToken	The task ID of the Appdome fusion of the currently running app
kernelInfo	Info about the kernel: system name, node name, release, version and machine.
carrierPlmn	PLMN of the device. Only available for Android devices.
deviceID	Current device ID
reasonCode	Reason code of the occurred event
deviceBrand	Brand of the device
deviceBoard	Board of the device
buildUser	Build user
buildHost	Build host
sdkVersion	Sdk version
threatCode	The last six characters of the threat code specify the OS, allowing the Threat Resolution Center to address the attack on the affected device.