diff --git a/core/java/android/view/InputDevice.java b/core/java/android/view/InputDevice.java
index b22a43ec51180..720f5692fced7 100644
--- a/core/java/android/view/InputDevice.java
+++ b/core/java/android/view/InputDevice.java
@@ -448,6 +448,7 @@ public final class InputDevice implements Parcelable {
      */
     public static final int KEYBOARD_TYPE_ALPHABETIC = 2;
 
+    // Cap motion ranges to prevent attacks (b/25637534)
     private static final int MAX_RANGES = 1000;
 
     private static final int VIBRATOR_ID_ALL = -1;