diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index f5a22543f9405..491679173677b 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -680,6 +680,7 @@ package android.app {
   }
 
   public static class Notification.Action implements android.os.Parcelable {
+    field public static final int SEMANTIC_ACTION_CONVERSATION_IS_PHISHING = 12; // 0xc
     field public static final int SEMANTIC_ACTION_MARK_CONVERSATION_AS_PRIORITY = 11; // 0xb
   }
 
diff --git a/core/java/android/app/Notification.java b/core/java/android/app/Notification.java
index b6fc47f27b05f..77daf8ddf08f4 100644
--- a/core/java/android/app/Notification.java
+++ b/core/java/android/app/Notification.java
@@ -1604,6 +1604,14 @@ public class Notification implements Parcelable
         @SystemApi
         public static final int SEMANTIC_ACTION_MARK_CONVERSATION_AS_PRIORITY = 11;
 
+        /**
+         * {@code SemanticAction}: Mark content as a potential phishing attempt.
+         * Note that this is only for use by the notification assistant services.
+         * @hide
+         */
+        @SystemApi
+        public static final int SEMANTIC_ACTION_CONVERSATION_IS_PHISHING = 12;
+
         private final Bundle mExtras;
         @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
         private Icon mIcon;
@@ -2315,7 +2323,8 @@ public class Notification implements Parcelable
                 SEMANTIC_ACTION_THUMBS_UP,
                 SEMANTIC_ACTION_THUMBS_DOWN,
                 SEMANTIC_ACTION_CALL,
-                SEMANTIC_ACTION_MARK_CONVERSATION_AS_PRIORITY
+                SEMANTIC_ACTION_MARK_CONVERSATION_AS_PRIORITY,
+                SEMANTIC_ACTION_CONVERSATION_IS_PHISHING
         })
         @Retention(RetentionPolicy.SOURCE)
         public @interface SemanticAction {}