diff --git a/.gitea/workflows/security.yml b/.gitea/workflows/security.yml
new file mode 100644
index 0000000..8c15c72
--- /dev/null
+++ b/.gitea/workflows/security.yml
@@ -0,0 +1,44 @@
+name: security
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  security:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0   # GitLeaks хочет полную историю
+
+      # ── 1. Hadolint: проверка Dockerfile на bad practices ─────────────
+      - name: Hadolint
+        run: |
+          if [ -f Dockerfile ]; then
+            docker run --rm -i hadolint/hadolint hadolint --no-fail - < Dockerfile || true
+          else
+            echo "No Dockerfile — skip Hadolint"
+          fi
+
+      # ── 2. GitLeaks: поиск секретов в истории ─────────────────────────
+      - name: GitLeaks
+        run: |
+          docker run --rm -v "$(pwd)":/repo zricethezav/gitleaks:latest \
+            detect --source /repo --no-banner --verbose --redact --exit-code 0 || true
+
+      # ── 3. Semgrep: SAST на JavaScript/React/Astro ────────────────────
+      - name: Semgrep
+        run: |
+          docker run --rm -v "$(pwd)":/src returntocorp/semgrep:latest \
+            semgrep ci \
+              --config=p/javascript \
+              --config=p/react \
+              --config=p/typescript \
+              --config=p/security-audit \
+              --severity=ERROR --severity=WARNING \
+              --no-suppress-errors \
+              --error=0 || true