Trust Google Validated Assistance Services

Last updated May 18, 2025 by Appdome

This Knowledge Base article describes how to use Appdome’s AI/ML in your CI/CD pipeline to continuously deliver plugins that Trust Google Validated Assistance Services in Android apps.

What are Google Assistance Services?

Google Assistance Services is a collection of tools and features designed to enhance accessibility and user experience on Android devices. These services include:

  • AccessibilityTool: A service that provides accessibility features for users with disabilities.
  • Autofill: A service that automatically fills in forms based on previously saved information.
  • Notification Access: A service that allows apps to access and manipulate notifications.
  • Usage Access: A service that allows apps to monitor and track device usage.

 

Why Trust Google Validated Assistance Services in Android Apps?

The option to trust and allow Google-validated AccessibilityTool services ensures that your application uses only legitimate accessibility tools, improving security and user experience. By trusting these services, you can:

  • Prevent unauthorized access: Avoid the risk of malicious apps exploiting accessibility features to gain unauthorized access to your device.
  • Enhance user experience: Provide a more inclusive and accessible experience for users with disabilities.
  • Maintain compliance: Comply with accessibility regulations and guidelines.

By enabling Trust Google Validated Assistance Services in your Android app, you can ensure that your users benefit from the security and accessibility advantages provided by Google’s trusted services.

For more details on Google Accessibility Services, see Android Developers documentation: AccessibilityServiceInfo

Prerequisites for Using Appdome's Set Trusted Accessibility Services Plugins:

To use Appdome’s mobile app security build system to Trust Google Validated Assistance Services , you’ll need:

How to Implement Trust Google Validated Assistance Services in Android Apps Using Appdome

On Appdome, follow these simple steps to create self-defending Android Apps that Trust Google Validated Assistance Services without an SDK or gateway:

  1. 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. Android Formats: .apk or .aab
    3. Set Trusted Accessibility Services is compatible with: Java, JS, C++, C#, Kotlin, Flutter, React Native, Unity, Xamarin, Cordova and other Android apps.
  2. Select the defense: Set Trusted Accessibility Services.

      1. Create and name the Fusion Set (security template) that will contain the Set Trusted Accessibility Services feature as shown below:
        fusion set that contains Set Trusted Accessibility Services

        Figure 1: Fusion Set that will contain the Set Trusted Accessibility Services feature

      2. Follow the steps in Sections 2.2-2.2.2 of this article to add the Set Trusted Accessibility Services feature to your Fusion Set via the Appdome Console.

      3. When you enable Detect Bank Trojan Apps you'll notice that the Fusion Set you created in step 2.1 now bears the icon of the protection category that contains Set Trusted Accessibility Services.

        Fusion Set applied Set Trusted Accessibility Services

        Figure 2: Fusion Set that displays the newly added Set Trusted Accessibility Services protection
        Note: Annotating the Fusion Set to identify the protection(s) selected is optional only (not mandatory).

      4. 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): fusion Set Detail Summary image

        Figure 3: Fusion Set Detail Summary

      5. 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:
        1. Refer to the Appdome API Reference Guide for API building instructions.
        2. Look for sample APIs in Appdome’s GitHub Repository.
    1. Add the Set Trusted Accessibility Services feature to your security template.

      1. Navigate to Build > Anti ATO tab > Android Trojans section in the Appdome Console.
      2. Toggle On Detect Bank Trojan Apps > Set Trusted Accessibility Services.
        Note: The checkmark feature Set Trusted Accessibility Services is enabled by default, as shown below. Set Trusted Accessibility Services option

        Figure 4: Selecting Trust Google Validated Assistance Services

      3. Extra Configuration with Set Trusted Accessibility Services:
        1. Click the 'Edit' Button next to the Trusted Accessibility Services settings

          Toggle On 'Trust Google Validated Assistance Services'

    2. 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 Set Trusted Accessibility Services protection is now added to the mobile app
  3. Certify the Set Trusted Accessibility Services feature in Android Apps

    After building Set Trusted Accessibility Services, Appdome generates a Certified Secure™ certificate to guarantee that the Set Trusted Accessibility Services protection has been added and is protecting the app. To verify that the Set Trusted Accessibility Services protection has been added to the mobile app, locate the protection in the Certified Secure™ certificate as shown below: Set Trusted Accessibility Services shown in Certificate secure

    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 Set Trusted Accessibility Services has been added to each Android app. Certified Secure provides instant and in-line DevSecOps compliance certification that Set Trusted Accessibility Services and other mobile app security features are in each build of the mobile app.

Using Threat-Events™ for Google Validated Assistance Services Intelligence and Control in Android Apps

Appdome Threat-Events™ provides consumable in-app mobile app attack intelligence and defense control when Google Validated Assistance Services is detected. To consume and use Threat-Events™ for Google Validated Assistance Services in Android Apps, use registerReceiver in the Application OnCreate, and the code samples for Threat-Events™ for Google Validated Assistance Services shown below.

The specifications and options for Threat-Events™ for Google Validated Assistance Services are:

Threat-Event™ Elements Trust Google Validated Assistance Services Method Detail
Appdome Feature Name Set Trusted Accessibility Services
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 Trusting Google Validated Assistance Services Threat-Event™
Threat-Event NAME
Threat-Event DATA reasonData
Threat-Event CODE reasonCode
Threat-Event REF
Threat-Event SCORE
currentThreatEventScore Current Threat-Event score
threatEventsScore Total Threat-events score
Threat-Event Context Keys
message Message displayed for the user on event
failSafeEnforce Timed enforcement against the identified threat
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
buildDate Appdome fusion date of the current application
devicePlatform OS name of the current device
carrierName Carrier name of the current device. Only available for Android.
updatedOSVersion Is the OS version up to date
deviceBrand Brand of the device
deviceBoard Board of the device
buildUser Build user
buildHost Build host
sdkVersion Sdk version
timeZone Time zone
deviceFaceDown Is the device face down
locationLong Location longitude conditioned by location permission
locationLat Location latitude conditioned by location permission
locationState Location state conditioned by location permission
wifiSsid Wifi SSID
wifiSsidPermissionStatus Wifi SSID permission status
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), Android developers can get detailed attack intelligence and granular defense control in Android applications and create amazing user experiences for all mobile end users when Google Validated Assistance Services is detected.


The following is a code sample for native Android apps, which uses all values in the specification above for Set Trusted Accessibility Services:


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.



Using Appdome, there are no development or coding prerequisites to build secured Android Apps by using Set Trusted Accessibility Services. 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 Set Trusted Accessibility Services

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:

Related Articles:

Prevent Accessibility Service Malware on Android Apps

How to Set Trusted Accessibility Services

How to Detect Accessibility Service Abuse in Android Apps

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.

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