diff --git a/services/surfaceflinger/FrontEnd/LayerLifecycleManager.cpp b/services/surfaceflinger/FrontEnd/LayerLifecycleManager.cpp
index a826ec1..0983e7c 100644
--- a/services/surfaceflinger/FrontEnd/LayerLifecycleManager.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerLifecycleManager.cpp
@@ -433,4 +433,15 @@
     }
 }
 
+bool LayerLifecycleManager::isLayerSecure(uint32_t layerId) const {
+    if (layerId == UNASSIGNED_LAYER_ID) {
+        return false;
+    }
+
+    if (getLayerFromId(layerId)->flags & layer_state_t::eLayerSecure) {
+        return true;
+    }
+    return isLayerSecure(getLayerFromId(layerId)->parentId);
+}
+
 } // namespace android::surfaceflinger::frontend
diff --git a/services/surfaceflinger/FrontEnd/LayerLifecycleManager.h b/services/surfaceflinger/FrontEnd/LayerLifecycleManager.h
index 9aff78e..330da9a 100644
--- a/services/surfaceflinger/FrontEnd/LayerLifecycleManager.h
+++ b/services/surfaceflinger/FrontEnd/LayerLifecycleManager.h
@@ -80,6 +80,7 @@
     const std::vector<RequestedLayerState*>& getChangedLayers() const;
     const ftl::Flags<RequestedLayerState::Changes> getGlobalChanges() const;
     const RequestedLayerState* getLayerFromId(uint32_t) const;
+    bool isLayerSecure(uint32_t) const;
 
 private:
     friend class LayerLifecycleManagerTest;
diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
index 9476ff4..743cbf3 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
@@ -365,7 +365,7 @@
     return snapshot;
 }
 
-LayerSnapshotBuilder::LayerSnapshotBuilder() : mRootSnapshot(getRootSnapshot()) {}
+LayerSnapshotBuilder::LayerSnapshotBuilder() {}
 
 LayerSnapshotBuilder::LayerSnapshotBuilder(Args args) : LayerSnapshotBuilder() {
     args.forceUpdate = ForceUpdateFlags::ALL;
@@ -417,19 +417,20 @@
 
 void LayerSnapshotBuilder::updateSnapshots(const Args& args) {
     ATRACE_NAME("UpdateSnapshots");
+    LayerSnapshot rootSnapshot = args.rootSnapshot;
     if (args.parentCrop) {
-        mRootSnapshot.geomLayerBounds = *args.parentCrop;
+        rootSnapshot.geomLayerBounds = *args.parentCrop;
     } else if (args.forceUpdate == ForceUpdateFlags::ALL || args.displayChanges) {
-        mRootSnapshot.geomLayerBounds = getMaxDisplayBounds(args.displays);
+        rootSnapshot.geomLayerBounds = getMaxDisplayBounds(args.displays);
     }
     if (args.displayChanges) {
-        mRootSnapshot.changes = RequestedLayerState::Changes::AffectsChildren |
+        rootSnapshot.changes = RequestedLayerState::Changes::AffectsChildren |
                 RequestedLayerState::Changes::Geometry;
     }
     if (args.forceUpdate == ForceUpdateFlags::HIERARCHY) {
-        mRootSnapshot.changes |=
+        rootSnapshot.changes |=
                 RequestedLayerState::Changes::Hierarchy | RequestedLayerState::Changes::Visibility;
-        mRootSnapshot.clientChanges |= layer_state_t::eReparent;
+        rootSnapshot.clientChanges |= layer_state_t::eReparent;
     }
 
     for (auto& snapshot : mSnapshots) {
@@ -444,13 +445,13 @@
         // multiple children.
         LayerHierarchy::ScopedAddToTraversalPath addChildToPath(root, args.root.getLayer()->id,
                                                                 LayerHierarchy::Variant::Attached);
-        updateSnapshotsInHierarchy(args, args.root, root, mRootSnapshot, /*depth=*/0);
+        updateSnapshotsInHierarchy(args, args.root, root, rootSnapshot, /*depth=*/0);
     } else {
         for (auto& [childHierarchy, variant] : args.root.mChildren) {
             LayerHierarchy::ScopedAddToTraversalPath addChildToPath(root,
                                                                     childHierarchy->getLayer()->id,
                                                                     variant);
-            updateSnapshotsInHierarchy(args, *childHierarchy, root, mRootSnapshot, /*depth=*/0);
+            updateSnapshotsInHierarchy(args, *childHierarchy, root, rootSnapshot, /*depth=*/0);
         }
     }
 
@@ -459,7 +460,6 @@
     updateTouchableRegionCrop(args);
 
     const bool hasUnreachableSnapshots = sortSnapshotsByZ(args);
-    clearChanges(mRootSnapshot);
 
     // Destroy unreachable snapshots for clone layers. And destroy snapshots for non-clone
     // layers if the layer have been destroyed.
diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h
index 1506913..1cec018 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h
@@ -33,6 +33,9 @@
 // The builder also uses a fast path to update
 // snapshots when there are only buffer updates.
 class LayerSnapshotBuilder {
+private:
+    static LayerSnapshot getRootSnapshot();
+
 public:
     enum class ForceUpdateFlags {
         NONE,
@@ -55,6 +58,7 @@
         const std::unordered_map<std::string, bool>& supportedLayerGenericMetadata;
         const std::unordered_map<std::string, uint32_t>& genericLayerMetadataKeyMap;
         bool skipRoundCornersWhenProtected = false;
+        LayerSnapshot rootSnapshot = getRootSnapshot();
     };
     LayerSnapshotBuilder();
 
@@ -87,7 +91,6 @@
 
 private:
     friend class LayerSnapshotTest;
-    static LayerSnapshot getRootSnapshot();
 
     // return true if we were able to successfully update the snapshots via
     // the fast path.
@@ -130,7 +133,6 @@
     std::unordered_set<LayerHierarchy::TraversalPath, LayerHierarchy::TraversalPathHash>
             mNeedsTouchableRegionCrop;
     std::vector<std::unique_ptr<LayerSnapshot>> mSnapshots;
-    LayerSnapshot mRootSnapshot;
     bool mResortSnapshots = false;
     int mNumInterestingSnapshots = 0;
 };