diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index c43b0938..d6d90826 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -22,6 +22,9 @@ on:
   schedule:
     - cron: '20 9 * * 5'
 
+permissions:
+  contents: read
+
 jobs:
   analyze:
     name: Analyze
@@ -41,16 +44,16 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
     - name: Setup .NET
-      uses: actions/setup-dotnet@v4
+      uses: actions/setup-dotnet@3951f0dfe7a07e2313ec93c75700083e2005cbab # v4.3.0
       with:
         dotnet-version: 9.0.x
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v3
+      uses: github/codeql-action/init@dd746615b3b9d728a6a37ca2045b68ca76d4841a # v3.28.8
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.
@@ -78,4 +81,4 @@ jobs:
       run: dotnet build --no-restore -c Release
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v3
+      uses: github/codeql-action/analyze@dd746615b3b9d728a6a37ca2045b68ca76d4841a # v3.28.8
diff --git a/.github/workflows/codeql-required-workaround.yml b/.github/workflows/codeql-required-workaround.yml
index 94b77966..b5eb33e3 100644
--- a/.github/workflows/codeql-required-workaround.yml
+++ b/.github/workflows/codeql-required-workaround.yml
@@ -10,6 +10,9 @@ on:
 
 # https://docs.github.com/en/repositories/configuring-branches-and-merges-in-your-repository/defining-the-mergeability-of-pull-requests/troubleshooting-required-status-checks#handling-skipped-but-required-checks
 
+permissions:
+  contents: read
+
 jobs:
   analyze: #names must match the original workflow
     name: Analyze (csharp)
diff --git a/.github/workflows/create-release.yml b/.github/workflows/create-release.yml
index 6b05a9fc..5e1e3992 100644
--- a/.github/workflows/create-release.yml
+++ b/.github/workflows/create-release.yml
@@ -18,9 +18,9 @@ jobs:
     env:
       release: 'dev-proxy-${{ matrix.architecture }}-${{ github.ref_name }}'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@3951f0dfe7a07e2313ec93c75700083e2005cbab # v4.3.0
         with:
           dotnet-version: 9.0.x
       - name: Rename executable for beta
@@ -57,7 +57,7 @@ jobs:
           Get-ChildItem -Filter *.runtimeconfig.json -Recurse | Remove-Item
           popd
       - name: Archive release ${{ env.release }}
-        uses: thedoctor0/zip-release@master
+        uses: thedoctor0/zip-release@a24011d8d445e4da5935a7e73c1f98e22a439464 # master
         with:
           filename: '../${{ env.release }}.zip'
           directory: './${{ env.release }}'
@@ -65,20 +65,20 @@ jobs:
         run: |
           $(Get-FileHash ./${{ env.release }}.zip -Algorithm SHA256).Hash
       - name: Upload release
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0
         with:
           name: binaries-${{ env.release }}
           path: ./${{ env.release }}.zip
       - name: Archive abstractions
         if: matrix.architecture == 'win-x64'
-        uses: thedoctor0/zip-release@master
+        uses: thedoctor0/zip-release@a24011d8d445e4da5935a7e73c1f98e22a439464 # master
         with:
           filename: '../../../../dev-proxy-abstractions-${{ github.ref_name }}.zip'
           directory: './dev-proxy-abstractions/bin/Release/net9.0'
           exclusions: '*.json'
       - name: Upload abstractions
         if: matrix.architecture == 'win-x64'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0
         with:
           name: binaries-dev-proxy-abstractions-${{ github.ref_name }}
           path: ./dev-proxy-abstractions-${{ github.ref_name }}.zip
@@ -113,7 +113,7 @@ jobs:
         working-directory: ./${{ env.release }}
       - name: Upload Installer
         if: contains(matrix.architecture, 'win-')
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0
         with:
           name: installer-dev-proxy-${{ github.ref_name }}-${{ matrix.architecture }}
           path: ./${{ env.release }}/dev-proxy-installer-${{ matrix.architecture }}-${{ github.ref_name }}.exe
@@ -130,12 +130,12 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/download-artifact@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
         with:
           path: output
       - name: Release
-        uses: anton-yurchenko/git-release@v6.0
+        uses: anton-yurchenko/git-release@ec9c5b5c36b27eaffc628785b9183eae54601200 # v6.0.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           DRAFT_RELEASE: "false"
diff --git a/.github/workflows/dotnet-required-workaround.yml b/.github/workflows/dotnet-required-workaround.yml
index 435c6730..50448aac 100644
--- a/.github/workflows/dotnet-required-workaround.yml
+++ b/.github/workflows/dotnet-required-workaround.yml
@@ -10,6 +10,9 @@ on:
 
 # https://docs.github.com/en/repositories/configuring-branches-and-merges-in-your-repository/defining-the-mergeability-of-pull-requests/troubleshooting-required-status-checks#handling-skipped-but-required-checks
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/dotnet.yml b/.github/workflows/dotnet.yml
index 68a44c51..a2f35fb2 100644
--- a/.github/workflows/dotnet.yml
+++ b/.github/workflows/dotnet.yml
@@ -9,15 +9,18 @@ on:
     # The branches below must be a subset of the branches above
     paths-ignore: ['samples/**', '**.md', '.vscode/**', '**.svg']
 
+permissions:
+  contents: read
+
 jobs:
   build:
 
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
     - name: Setup .NET
-      uses: actions/setup-dotnet@v4
+      uses: actions/setup-dotnet@3951f0dfe7a07e2313ec93c75700083e2005cbab # v4.3.0
       with:
         dotnet-version: 9.0.x
     - name: Restore workloads