diff --git a/apps/client/src/common/components/navigation-menu/FloatingNavigation.tsx b/apps/client/src/common/components/navigation-menu/FloatingNavigation.tsx
index a4b692a9c..026c7a76d 100644
--- a/apps/client/src/common/components/navigation-menu/FloatingNavigation.tsx
+++ b/apps/client/src/common/components/navigation-menu/FloatingNavigation.tsx
@@ -1,8 +1,7 @@
-import { useEffect, useState } from 'react';
 import { IoApps } from '@react-icons/all-files/io5/IoApps';
 import { IoSettingsOutline } from '@react-icons/all-files/io5/IoSettingsOutline';
 
-import { debounce } from '../../utils/debounce';
+import { useFadeOutOnInactivity } from '../../../common/hooks/useFadeOutOnInactivity';
 
 import style from './NavigationMenu.module.scss';
 
@@ -13,32 +12,10 @@ interface FloatingNavigationProps {
 
 export default function FloatingNavigation(props: FloatingNavigationProps) {
   const { toggleMenu, toggleSettings } = props;
-  const [showButton, setShowButton] = useState(false);
-
-  // show on mouse move
-  useEffect(() => {
-    let fadeOut: NodeJS.Timeout | null = null;
-    const setShowMenuTrue = () => {
-      setShowButton(true);
-      if (fadeOut) {
-        clearTimeout(fadeOut);
-      }
-      fadeOut = setTimeout(() => setShowButton(false), 3000);
-    };
-
-    const debouncedShowMenu = debounce(setShowMenuTrue, 1000);
-
-    document.addEventListener('mousemove', debouncedShowMenu);
-    return () => {
-      document.removeEventListener('mousemove', debouncedShowMenu);
-      if (fadeOut) {
-        clearTimeout(fadeOut);
-      }
-    };
-  }, []);
+  const isButtonShown = useFadeOutOnInactivity();
 
   return (
-    <div className={`${style.buttonContainer} ${!showButton ? style.hidden : ''}`}>
+    <div className={`${style.buttonContainer} ${!isButtonShown ? style.hidden : ''}`}>
       <button
         onClick={toggleMenu}
         aria-label='toggle menu'
diff --git a/apps/client/src/common/components/navigation-menu/NavigationMenu.module.scss b/apps/client/src/common/components/navigation-menu/NavigationMenu.module.scss
index ce27df253..fc71ecbf8 100644
--- a/apps/client/src/common/components/navigation-menu/NavigationMenu.module.scss
+++ b/apps/client/src/common/components/navigation-menu/NavigationMenu.module.scss
@@ -38,6 +38,16 @@ $button-size: 3rem;
   border-radius: 3px;
 }
 
+.lockIcon {
+  font-size: 1.5rem;
+  display: grid;
+  place-content: center;
+  border-radius: 3px;
+  background-color: transparent;
+  color: $active-indicator;
+  cursor: default;
+}
+
 .navButton {
   @extend .button;
   z-index: 3;
diff --git a/apps/client/src/common/components/navigation-menu/ViewLockedIcon.tsx b/apps/client/src/common/components/navigation-menu/ViewLockedIcon.tsx
new file mode 100644
index 000000000..bddd50530
--- /dev/null
+++ b/apps/client/src/common/components/navigation-menu/ViewLockedIcon.tsx
@@ -0,0 +1,15 @@
+import { IoLockClosedOutline } from '@react-icons/all-files/io5/IoLockClosedOutline';
+
+import { useFadeOutOnInactivity } from '../../../common/hooks/useFadeOutOnInactivity';
+
+import style from './NavigationMenu.module.scss';
+
+export default function ViewLockedIcon() {
+  const isLockIconShown = useFadeOutOnInactivity();
+
+  return (
+    <div className={`${style.buttonContainer} ${!isLockIconShown ? style.hidden : ''}`}>
+      <IoLockClosedOutline className={style.lockIcon} />
+    </div>
+  );
+}
diff --git a/apps/client/src/common/components/navigation-menu/ViewNavigationMenu.tsx b/apps/client/src/common/components/navigation-menu/ViewNavigationMenu.tsx
index 3cb203ac4..021d2aaf1 100644
--- a/apps/client/src/common/components/navigation-menu/ViewNavigationMenu.tsx
+++ b/apps/client/src/common/components/navigation-menu/ViewNavigationMenu.tsx
@@ -2,13 +2,18 @@ import { memo, useCallback } from 'react';
 import { useSearchParams } from 'react-router-dom';
 import { useDisclosure } from '@chakra-ui/react';
 
+import { isStringBoolean } from '../../../features/viewers/common/viewUtils';
+
 import FloatingNavigation from './FloatingNavigation';
 import NavigationMenu from './NavigationMenu';
+import ViewLockedIcon from './ViewLockedIcon';
 
 function ViewNavigationMenu() {
   const [searchParams, setSearchParams] = useSearchParams();
   const { isOpen: isMenuOpen, onOpen: onMenuOpen, onClose: onMenuClose } = useDisclosure();
 
+  const isViewLocked = isStringBoolean(searchParams.get('locked'));
+
   const showEditFormDrawer = useCallback(() => {
     searchParams.set('edit', 'true');
     setSearchParams(searchParams);
@@ -16,6 +21,10 @@ function ViewNavigationMenu() {
 
   const toggleMenu = () => (isMenuOpen ? onMenuClose() : onMenuOpen());
 
+  if (isViewLocked) {
+    return <ViewLockedIcon />;
+  }
+
   return (
     <>
       <FloatingNavigation toggleMenu={toggleMenu} toggleSettings={showEditFormDrawer} />
diff --git a/apps/client/src/common/hooks/useFadeOutOnInactivity.tsx b/apps/client/src/common/hooks/useFadeOutOnInactivity.tsx
new file mode 100644
index 000000000..44e589245
--- /dev/null
+++ b/apps/client/src/common/hooks/useFadeOutOnInactivity.tsx
@@ -0,0 +1,31 @@
+import { useEffect, useState } from 'react';
+
+import { debounce } from '../../common/utils/debounce';
+
+export const useFadeOutOnInactivity = () => {
+  const [isMouseMoved, setIsMouseMoved] = useState(false);
+
+  // show on mouse move
+  useEffect(() => {
+    let fadeOut: NodeJS.Timeout | null = null;
+    const setShowMenuTrue = () => {
+      setIsMouseMoved(true);
+      if (fadeOut) {
+        clearTimeout(fadeOut);
+      }
+      fadeOut = setTimeout(() => setIsMouseMoved(false), 3000);
+    };
+
+    const debouncedShowMenu = debounce(setShowMenuTrue, 1000);
+
+    document.addEventListener('mousemove', debouncedShowMenu);
+    return () => {
+      document.removeEventListener('mousemove', debouncedShowMenu);
+      if (fadeOut) {
+        clearTimeout(fadeOut);
+      }
+    };
+  }, []);
+
+  return isMouseMoved;
+};