diff --git a/.github/workflows/build-app.yml b/.github/workflows/build-app.yml
index dbde71a..fe25bb3 100644
--- a/.github/workflows/build-app.yml
+++ b/.github/workflows/build-app.yml
@@ -20,6 +20,9 @@ env:
   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   GITHUB_SHA: ${{ github.sha  }}
 
+permissions:
+  contents: read
+
 jobs:
   build-app:
     runs-on: ubuntu-latest
@@ -28,10 +31,15 @@ jobs:
       packages: write
 
     steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142 # v2.7.0
+        with:
+          egress-policy: audit
+
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
 
       - name: Log in to the Container registry
-        uses: docker/login-action@v3.0.0
+        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
@@ -39,13 +47,13 @@ jobs:
 
       # Will create and boot a builder that can be used in the build-push action.
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3.0.0
+        uses: docker/setup-qemu-action@68827325e0b33c7199eb31dd4e31fbe9023e06e3 # v3.0.0
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3.0.0
+        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@v5.5.1
+        uses: docker/metadata-action@8e5442c4ef9f78752691e2d8f8d19755c6f78e81 # v5.5.1
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
@@ -56,7 +64,7 @@ jobs:
 
       # Run the build and outputs a test coverage file
       - name: Build and push Docker image
-        uses: docker/build-push-action@v5.1.0
+        uses: docker/build-push-action@4a13e500e55cf31b7a5d59a38ab2040ab0f42f56 # v5.1.0
         with:
           file: Dockerfile
           push: false
@@ -66,7 +74,7 @@ jobs:
           outputs: |
             type=local,dest=.
 
-      - uses: codecov/codecov-action@v4.0.1
+      - uses: codecov/codecov-action@e0b68c6749509c5f83f984dd99a76a1c1a231044 # v4.0.1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: ./coverage.out
@@ -77,7 +85,7 @@ jobs:
       # since the context is based on the Git reference. Use the Path context to remove this restriction. 
       # https://github.com/marketplace/actions/build-and-push-docker-images#git-context
       - name: Build and push Docker image
-        uses: docker/build-push-action@v5.1.0
+        uses: docker/build-push-action@4a13e500e55cf31b7a5d59a38ab2040ab0f42f56 # v5.1.0
         with:
           file: Dockerfile
           push: true
@@ -88,13 +96,18 @@ jobs:
     runs-on: ubuntu-latest
     needs: ['build-app']
     steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142 # v2.7.0
+        with:
+          egress-policy: audit
+
       - name: Checkout repository
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
 
       # Security scanner
       # https://github.com/aquasecurity/trivy-action
       - name: Run container image vulnerability scanner
-        uses: aquasecurity/trivy-action@master
+        uses: aquasecurity/trivy-action@1f6384b6ceecbbc6673526f865b818a2a06b07c9 # master
         with:
           # image-ref: ${{ fromJSON(steps.meta.outputs.json).tags[0] }}
           image-ref: '${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:sha-${{ github.sha }}'
@@ -115,6 +128,11 @@ jobs:
       contents: write
     runs-on: ubuntu-latest
     steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142 # v2.7.0
+        with:
+          egress-policy: audit
+
       - name: Checkout
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
         with:
@@ -126,15 +144,15 @@ jobs:
           git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
 
       - name: Install Helm
-        uses: azure/setup-helm@v3
+        uses: azure/setup-helm@5119fcb9089d432beecbf79bb2c7915207344b78 # v3.5
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # v4.7.1
         with:
           python-version: '3.9'
           check-latest: true
 
       - name: Set up chart-testing
-        uses: helm/chart-testing-action@v2.3.1
+        uses: helm/chart-testing-action@afea100a513515fbd68b0e72a7bb0ae34cb62aec # v2.3.1
 
       - name: Run chart-testing (list-changed)
         id: list-changed
@@ -148,7 +166,7 @@ jobs:
         run: ct lint --config ct.yaml --target-branch ${{ github.event.repository.default_branch }}
 
       - name: Create kind cluster
-        uses: helm/kind-action@v1.4.0
+        uses: helm/kind-action@9e8295d178de23cbfbd8fa16cf844eec1d773a07 # v1.4.0
         if: steps.list-changed.outputs.changed == 'true'
 
       - name: Run chart-testing (install)
@@ -160,7 +178,7 @@ jobs:
           cat charts/kapparmor/values.yaml
 
       - name: Run chart-releaser
-        uses: helm/chart-releaser-action@v1.5.0
+        uses: helm/chart-releaser-action@be16258da8010256c6e82849661221415f031968 # v1.5.0
         env:
           CR_TOKEN: "${{ env.GITHUB_TOKEN }}"
         with:
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index dd14c5d..8cfde31 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -13,6 +13,9 @@ on:
   schedule:
     - cron: '20 13 * * 6'
 
+permissions:
+  contents: read
+
 jobs:
   analyze:
     name: Analyze
@@ -38,7 +41,7 @@ jobs:
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v3
+      uses: github/codeql-action/init@379614612a29c9e28f31f39a59013eb8012a51f0 # v3.24.3
       with:
         languages: ${{ matrix.language }}
         queries: security-extended,security-and-quality
@@ -47,7 +50,7 @@ jobs:
     # Autobuild attempts to build any compiled languages  (C/C++, C#, Go, or Java).
     # If this step fails, then you should remove it and run the build manually (see below)
     - name: Autobuild
-      uses: github/codeql-action/autobuild@v3
+      uses: github/codeql-action/autobuild@379614612a29c9e28f31f39a59013eb8012a51f0 # v3.24.3
 
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
@@ -60,6 +63,6 @@ jobs:
     #   ./location_of_script_within_repo/buildscript.sh
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v3
+      uses: github/codeql-action/analyze@379614612a29c9e28f31f39a59013eb8012a51f0 # v3.24.3
       with:
         category: "/language:${{matrix.language}}"
diff --git a/.github/workflows/golangci-lint.yml b/.github/workflows/golangci-lint.yml
index 97aeed2..a9f974b 100644
--- a/.github/workflows/golangci-lint.yml
+++ b/.github/workflows/golangci-lint.yml
@@ -16,12 +16,12 @@ jobs:
     name: lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/setup-go@v5.0.0
+      - uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491 # v5.0.0
         with:
           go-version: 1.22
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
       - name: golangci-lint
-        uses: golangci/golangci-lint-action@v4.0.0
+        uses: golangci/golangci-lint-action@3cfe3a4abbb849e10058ce4af15d205b6da42804 # v4.0.0
         with:
           # Optional: version of golangci-lint to use in form of v1.2 or v1.2.3 or `latest` to use the latest version
           version: latest
diff --git a/.github/workflows/scorecard.yml b/.github/workflows/scorecard.yml
index f118886..671ddfd 100644
--- a/.github/workflows/scorecard.yml
+++ b/.github/workflows/scorecard.yml
@@ -67,6 +67,6 @@ jobs:
 
       # Upload the results to GitHub's code scanning dashboard.
       - name: "Upload to code-scanning"
-        uses: github/codeql-action/upload-sarif@v3
+        uses: github/codeql-action/upload-sarif@379614612a29c9e28f31f39a59013eb8012a51f0 # v3.24.3
         with:
           sarif_file: results.sarif
diff --git a/Dockerfile b/Dockerfile
index 01e1443..df1d283 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,7 +18,7 @@ COPY --from=builder /builder/app/coverage.out .
 
 
 # --- Production image
-FROM ubuntu:latest
+FROM ubuntu:latest@sha256:f9d633ff6640178c2d0525017174a688e2c1aef28f0a0130b26bd5554491f0da
 LABEL Name=kapparmor
 LABEL Author="Affinito Alessandro"