diff --git a/CHANGELOG.md b/CHANGELOG.md
index 398134436bab..e18cccba3353 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 ### Client
 - サイズ制限を超過するファイルをアップロードしようとした際にエラーを出すように
 - Enhance: アイコンデコレーション管理画面にプレビューを追加
+- Enhance: コントロールパネル内のファイル一覧でセンシティブなファイルを区別しやすく
 - Fix: サーバーメトリクスが2つ以上あるとリロード直後の表示がおかしくなる問題を修正
 
 ### Server
diff --git a/packages/frontend/src/components/MkDriveFileThumbnail.vue b/packages/frontend/src/components/MkDriveFileThumbnail.vue
index 2c47a709709b..eb93aaab6e76 100644
--- a/packages/frontend/src/components/MkDriveFileThumbnail.vue
+++ b/packages/frontend/src/components/MkDriveFileThumbnail.vue
@@ -4,7 +4,13 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<div ref="thumbnail" :class="$style.root">
+<div
+	ref="thumbnail"
+	:class="[
+		$style.root,
+		{ [$style.sensitiveHighlight]: highlightWhenSensitive && file.isSensitive },
+	]"
+>
 	<ImgWithBlurhash v-if="isThumbnailAvailable" :hash="file.blurhash" :src="file.thumbnailUrl" :alt="file.name" :title="file.name" :cover="fit !== 'contain'"/>
 	<i v-else-if="is === 'image'" class="ti ti-photo" :class="$style.icon"></i>
 	<i v-else-if="is === 'video'" class="ti ti-video" :class="$style.icon"></i>
@@ -27,6 +33,7 @@ import ImgWithBlurhash from '@/components/MkImgWithBlurhash.vue';
 const props = defineProps<{
 	file: Misskey.entities.DriveFile;
 	fit: 'cover' | 'contain';
+	highlightWhenSensitive?: boolean;
 }>();
 
 const is = computed(() => {
@@ -67,6 +74,18 @@ const isThumbnailAvailable = computed(() => {
 	overflow: clip;
 }
 
+.sensitiveHighlight::after {
+	content: "";
+	position: absolute;
+	top: 0;
+	left: 0;
+	width: 100%;
+	height: 100%;
+	pointer-events: none;
+	border-radius: inherit;
+	box-shadow: inset 0 0 0 4px var(--warn);
+}
+
 .iconSub {
 	position: absolute;
 	width: 30%;
diff --git a/packages/frontend/src/components/MkFileListForAdmin.vue b/packages/frontend/src/components/MkFileListForAdmin.vue
index 30822ef655bd..13295c455b7c 100644
--- a/packages/frontend/src/components/MkFileListForAdmin.vue
+++ b/packages/frontend/src/components/MkFileListForAdmin.vue
@@ -14,7 +14,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			class="file _button"
 		>
 			<div v-if="file.isSensitive" class="sensitive-label">{{ i18n.ts.sensitive }}</div>
-			<MkDriveFileThumbnail class="thumbnail" :file="file" fit="contain"/>
+			<MkDriveFileThumbnail class="thumbnail" :file="file" fit="contain" :highlightWhenSensitive="true"/>
 			<div v-if="viewMode === 'list'" class="body">
 				<div>
 					<small style="opacity: 0.7;">{{ file.name }}</small>