diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowController.java
index 946fe0b3a2f85..1998f5a77302c 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowController.java
@@ -27,6 +27,7 @@ import android.content.pm.ActivityInfo;
 import android.content.res.Resources;
 import android.graphics.PixelFormat;
 import android.os.Binder;
+import android.os.Build;
 import android.os.RemoteException;
 import android.os.SystemProperties;
 import android.os.Trace;
@@ -248,6 +249,16 @@ public class StatusBarWindowController implements Callback, Dumpable, Configurat
             }
             Trace.setCounter("display_mode_id", mLpChanged.preferredDisplayModeId);
         }
+
+        if (state.bouncerShowing && !isDebuggable()) {
+            mLpChanged.flags |= LayoutParams.FLAG_SECURE;
+        } else {
+            mLpChanged.flags &= ~LayoutParams.FLAG_SECURE;
+        }
+    }
+
+    protected boolean isDebuggable() {
+        return Build.IS_DEBUGGABLE;
     }
 
     private void adjustScreenOrientation(State state) {
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/StatusBarWindowControllerTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/StatusBarWindowControllerTest.java
index 4ffaeaef77b4f..a1526d438b18d 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/StatusBarWindowControllerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/StatusBarWindowControllerTest.java
@@ -16,6 +16,8 @@
 
 package com.android.systemui.statusbar.phone;
 
+import static android.view.WindowManager.LayoutParams.FLAG_SECURE;
+
 import static com.google.common.truth.Truth.assertThat;
 
 import static org.mockito.ArgumentMatchers.any;
@@ -40,6 +42,7 @@ import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
@@ -62,6 +65,8 @@ public class StatusBarWindowControllerTest extends SysuiTestCase {
     private ConfigurationController mConfigurationController;
     @Mock
     private KeyguardBypassController mKeyguardBypassController;
+    @Captor
+    private ArgumentCaptor<WindowManager.LayoutParams> mLayoutParameters;
 
     private StatusBarWindowController mStatusBarWindowController;
 
@@ -72,24 +77,27 @@ public class StatusBarWindowControllerTest extends SysuiTestCase {
 
         mStatusBarWindowController = new StatusBarWindowController(mContext, mWindowManager,
                 mActivityManager, mDozeParameters, mStatusBarStateController,
-                mConfigurationController, mKeyguardBypassController);
+                mConfigurationController, mKeyguardBypassController) {
+                    @Override
+                    protected boolean isDebuggable() {
+                        return false;
+                    }
+            };
         mStatusBarWindowController.add(mStatusBarView, 100 /* height */);
     }
 
     @Test
     public void testSetDozing_hidesSystemOverlays() {
         mStatusBarWindowController.setDozing(true);
-        ArgumentCaptor<WindowManager.LayoutParams> captor =
-                ArgumentCaptor.forClass(WindowManager.LayoutParams.class);
-        verify(mWindowManager).updateViewLayout(any(), captor.capture());
-        int flag = captor.getValue().privateFlags
+        verify(mWindowManager).updateViewLayout(any(), mLayoutParameters.capture());
+        int flag = mLayoutParameters.getValue().privateFlags
                 & WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS;
         assertThat(flag).isNotEqualTo(0);
 
         reset(mWindowManager);
         mStatusBarWindowController.setDozing(false);
-        verify(mWindowManager).updateViewLayout(any(), captor.capture());
-        flag = captor.getValue().privateFlags
+        verify(mWindowManager).updateViewLayout(any(), mLayoutParameters.capture());
+        flag = mLayoutParameters.getValue().privateFlags
                 & WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS;
         assertThat(flag).isEqualTo(0);
     }
@@ -114,4 +122,20 @@ public class StatusBarWindowControllerTest extends SysuiTestCase {
                 mConfigurationController, mKeyguardBypassController);
         mStatusBarWindowController.setForcePluginOpen(true);
     }
+
+    @Test
+    public void setKeyguardShowing_enablesSecureFlag() {
+        mStatusBarWindowController.setBouncerShowing(true);
+
+        verify(mWindowManager).updateViewLayout(any(), mLayoutParameters.capture());
+        assertThat((mLayoutParameters.getValue().flags & FLAG_SECURE) != 0).isTrue();
+    }
+
+    @Test
+    public void setKeyguardNotShowing_disablesSecureFlag() {
+        mStatusBarWindowController.setBouncerShowing(false);
+
+        verify(mWindowManager).updateViewLayout(any(), mLayoutParameters.capture());
+        assertThat((mLayoutParameters.getValue().flags & FLAG_SECURE) == 0).isTrue();
+    }
 }