diff --git a/packages/SystemUI/res/layout/auth_container_view.xml b/packages/SystemUI/res/layout/auth_container_view.xml
index d83776b74fd13..23199aacc0931 100644
--- a/packages/SystemUI/res/layout/auth_container_view.xml
+++ b/packages/SystemUI/res/layout/auth_container_view.xml
@@ -23,7 +23,8 @@
         android:id="@+id/background"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:background="@color/biometric_dialog_dim_color"/>
+        android:background="@color/biometric_dialog_dim_color"
+        android:contentDescription="@string/biometric_dialog_empty_space_description"/>
 
     <View
         android:id="@+id/panel"
diff --git a/packages/SystemUI/res/values/strings.xml b/packages/SystemUI/res/values/strings.xml
index 19e682b4b6a41..97e2f0f6562b2 100644
--- a/packages/SystemUI/res/values/strings.xml
+++ b/packages/SystemUI/res/values/strings.xml
@@ -294,7 +294,7 @@
     <!-- Button name on BiometricPrompt shown when a biometric is detected but not authenticated. Tapping the button resumes authentication [CHAR LIMIT=30] -->
     <string name="biometric_dialog_try_again">Try again</string>
     <!-- Content description for empty spaces that are not taken by the biometric dialog. Clicking on these areas will cancel authentication and dismiss the biometric dialog [CHAR LIMIT=NONE] -->
-    <string name="biometric_dialog_empty_space_description">Empty region, tap to cancel authentication</string>
+    <string name="biometric_dialog_empty_space_description">Tap to cancel authentication</string>
     <!-- Content description for the face icon when the device is not authenticating anymore [CHAR LIMIT=NONE] -->
     <string name="biometric_dialog_face_icon_description_idle">Please try again</string>
     <!-- Content description for the face icon when the device is authenticating [CHAR LIMIT=NONE] -->
@@ -305,6 +305,8 @@
     <string name="biometric_dialog_face_icon_description_confirmed">Confirmed</string>
     <!-- Message shown when a biometric is authenticated, waiting for the user to confirm authentication [CHAR LIMIT=40]-->
     <string name="biometric_dialog_tap_confirm">Tap Confirm to complete</string>
+    <!-- Talkback string when a biometric is authenticated [CHAR LIMIT=NONE] -->
+    <string name="biometric_dialog_authenticated">Authenticated</string>
 
     <!-- Message shown when the system-provided fingerprint dialog is shown, asking for authentication -->
     <string name="fingerprint_dialog_touch_sensor">Touch the fingerprint sensor</string>
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricFaceView.java b/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricFaceView.java
index 52a13cc9c87f4..1d47fc520ec2a 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricFaceView.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricFaceView.java
@@ -111,8 +111,12 @@ public class AuthBiometricFaceView extends AuthBiometricView {
                         R.string.biometric_dialog_face_icon_description_confirmed));
             } else if (lastStateIsErrorIcon && newState == STATE_IDLE) {
                 animateOnce(R.drawable.face_dialog_error_to_idle);
+                mIconView.setContentDescription(mContext.getString(
+                        R.string.biometric_dialog_face_icon_description_idle));
             } else if (lastStateIsErrorIcon && newState == STATE_AUTHENTICATED) {
                 animateOnce(R.drawable.face_dialog_dark_to_checkmark);
+                mIconView.setContentDescription(mContext.getString(
+                        R.string.biometric_dialog_face_icon_description_authenticated));
             } else if (newState == STATE_ERROR && lastState != STATE_ERROR) {
                 animateOnce(R.drawable.face_dialog_dark_to_error);
             } else if (lastState == STATE_AUTHENTICATING && newState == STATE_AUTHENTICATED) {
@@ -125,6 +129,8 @@ public class AuthBiometricFaceView extends AuthBiometricView {
                         R.string.biometric_dialog_face_icon_description_authenticated));
             } else if (newState == STATE_IDLE) {
                 showStaticDrawable(R.drawable.face_dialog_idle_static);
+                mIconView.setContentDescription(mContext.getString(
+                        R.string.biometric_dialog_face_icon_description_idle));
             } else {
                 Log.w(TAG, "Unhandled state: " + newState);
             }
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricView.java b/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricView.java
index 12902d5e283b3..e4d2005c88675 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricView.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricView.java
@@ -16,6 +16,8 @@
 
 package com.android.systemui.biometrics;
 
+import static android.view.accessibility.AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE;
+
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
@@ -32,6 +34,8 @@ import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.View;
+import android.view.accessibility.AccessibilityEvent;
+import android.view.accessibility.AccessibilityManager;
 import android.widget.Button;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
@@ -145,6 +149,7 @@ public abstract class AuthBiometricView extends LinearLayout {
 
     private final Injector mInjector;
     private final Handler mHandler;
+    private final AccessibilityManager mAccessibilityManager;
     private final int mTextColorError;
     private final int mTextColorHint;
 
@@ -196,15 +201,9 @@ public abstract class AuthBiometricView extends LinearLayout {
      */
     protected abstract boolean supportsSmallDialog();
 
-    private final Runnable mResetErrorRunnable = () -> {
-        updateState(getStateForAfterError());
-        handleResetAfterError();
-    };
+    private final Runnable mResetErrorRunnable;
 
-    private final Runnable mResetHelpRunnable = () -> {
-        updateState(STATE_AUTHENTICATING);
-        handleResetAfterHelp();
-    };
+    private final Runnable mResetHelpRunnable;
 
     private final OnClickListener mBackgroundClickListener = (view) -> {
         if (mState == STATE_AUTHENTICATED) {
@@ -236,6 +235,20 @@ public abstract class AuthBiometricView extends LinearLayout {
 
         mInjector = injector;
         mInjector.mBiometricView = this;
+
+        mAccessibilityManager = context.getSystemService(AccessibilityManager.class);
+
+        mResetErrorRunnable = () -> {
+            updateState(getStateForAfterError());
+            handleResetAfterError();
+            Utils.notifyAccessibilityContentChanged(mAccessibilityManager, this);
+        };
+
+        mResetHelpRunnable = () -> {
+            updateState(STATE_AUTHENTICATING);
+            handleResetAfterHelp();
+            Utils.notifyAccessibilityContentChanged(mAccessibilityManager, this);
+        };
     }
 
     public void setPanelController(AuthPanelController panelController) {
@@ -333,6 +346,8 @@ public abstract class AuthBiometricView extends LinearLayout {
                     super.onAnimationEnd(animation);
                     mSize = newSize;
                     mDialogSizeAnimating = false;
+                    Utils.notifyAccessibilityContentChanged(mAccessibilityManager,
+                            AuthBiometricView.this);
                 }
             });
 
@@ -348,6 +363,7 @@ public abstract class AuthBiometricView extends LinearLayout {
         } else {
             Log.e(TAG, "Unknown transition from: " + mSize + " to: " + newSize);
         }
+        Utils.notifyAccessibilityContentChanged(mAccessibilityManager, this);
     }
 
     public void updateState(@BiometricState int newState) {
@@ -369,6 +385,8 @@ public abstract class AuthBiometricView extends LinearLayout {
                     mNegativeButton.setVisibility(View.GONE);
                     mIndicatorView.setVisibility(View.INVISIBLE);
                 }
+                announceForAccessibility(getResources()
+                        .getString(R.string.biometric_dialog_authenticated));
                 mHandler.postDelayed(() -> mCallback.onAction(Callback.ACTION_AUTHENTICATED),
                         getDelayAfterAuthenticatedDurationMs());
                 break;
@@ -395,6 +413,7 @@ public abstract class AuthBiometricView extends LinearLayout {
                 break;
         }
 
+        Utils.notifyAccessibilityContentChanged(mAccessibilityManager, this);
         mState = newState;
     }
 
@@ -461,6 +480,8 @@ public abstract class AuthBiometricView extends LinearLayout {
         } else {
             view.setText(string);
         }
+
+        Utils.notifyAccessibilityContentChanged(mAccessibilityManager, this);
     }
 
     private void setText(TextView view, String string) {
@@ -479,6 +500,8 @@ public abstract class AuthBiometricView extends LinearLayout {
         mIndicatorView.setTextColor(mTextColorError);
         mIndicatorView.setVisibility(View.VISIBLE);
         mHandler.postDelayed(resetMessageRunnable, BiometricPrompt.HIDE_DIALOG_DELAY);
+
+        Utils.notifyAccessibilityContentChanged(mAccessibilityManager, this);
     }
 
     @Override
@@ -517,6 +540,7 @@ public abstract class AuthBiometricView extends LinearLayout {
             updateState(STATE_AUTHENTICATING);
             mCallback.onAction(Callback.ACTION_BUTTON_TRY_AGAIN);
             mTryAgainButton.setVisibility(View.GONE);
+            Utils.notifyAccessibilityContentChanged(mAccessibilityManager, this);
         });
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/Utils.java b/packages/SystemUI/src/com/android/systemui/biometrics/Utils.java
index edd8089c35f94..e00cf6abafaa0 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/Utils.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/Utils.java
@@ -16,8 +16,14 @@
 
 package com.android.systemui.biometrics;
 
+import static android.view.accessibility.AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE;
+
 import android.content.Context;
 import android.util.DisplayMetrics;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.accessibility.AccessibilityEvent;
+import android.view.accessibility.AccessibilityManager;
 
 public class Utils {
     static float dpToPixels(Context context, float dp) {
@@ -29,4 +35,15 @@ public class Utils {
         return pixels / ((float) context.getResources().getDisplayMetrics().densityDpi
                 / DisplayMetrics.DENSITY_DEFAULT);
     }
+
+    static void notifyAccessibilityContentChanged(AccessibilityManager am, ViewGroup view) {
+        if (!am.isEnabled()) {
+            return;
+        }
+        AccessibilityEvent event = AccessibilityEvent.obtain();
+        event.setEventType(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED);
+        event.setContentChangeTypes(CONTENT_CHANGE_TYPE_SUBTREE);
+        view.sendAccessibilityEventUnchecked(event);
+        view.notifySubtreeAccessibilityStateChanged(view, view, CONTENT_CHANGE_TYPE_SUBTREE);
+    }
 }