diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
new file mode 100644
index 00000000..196156aa
--- /dev/null
+++ b/.github/workflows/security.yml
@@ -0,0 +1,45 @@
+name: Security Scan
+
+on:
+  push:
+    branches: [main, develop]
+  pull_request:
+    branches: [main, develop]
+  schedule:
+    - cron: '0 2 * * 0'
+
+jobs:
+  semgrep:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Run Semgrep
+        uses: returntocorp/semgrep-action@v1
+        with:
+          generateSarif: true
+          config: |
+            p/security-audit
+            p/typescript
+            p/react
+      
+      - name: Upload SARIF file
+        uses: github/codeql-action/upload-sarif@v2
+        with:
+          sarif_file: semgrep.sarif
+        if: always()
+
+  dependency-check:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Run npm audit
+        run: npm audit --production --audit-level=moderate
+        continue-on-error: true
+      
+      - name: Check for vulnerable dependencies
+        run: npm audit --production
+        continue-on-error: true