diff --git a/.github/workflows/auto-approve.yml b/.github/workflows/auto-approve.yml
index 55b728e3d5..0b702962f7 100644
--- a/.github/workflows/auto-approve.yml
+++ b/.github/workflows/auto-approve.yml
@@ -29,5 +29,5 @@ jobs:
 
     if: |
       github.event.pull_request.user.login == 'dependabot[bot]' || github.event.pull_request.user.login == 'uefibot'
-    uses: microsoft/mu_devops/.github/workflows/AutoApprover.yml@v13.0.3
+    uses: microsoft/mu_devops/.github/workflows/AutoApprover.yml@bc161dc1de33e44b23acdd041f1875993dd68e86 # v13.0.3
     secrets: inherit
diff --git a/.github/workflows/auto-merge.yml b/.github/workflows/auto-merge.yml
index 43a3c4ca15..94516e44f9 100644
--- a/.github/workflows/auto-merge.yml
+++ b/.github/workflows/auto-merge.yml
@@ -32,5 +32,5 @@ jobs:
 
     if: |
       github.event.pull_request.user.login == 'dependabot[bot]' || github.event.pull_request.user.login == 'uefibot'
-    uses: microsoft/mu_devops/.github/workflows/AutoMerger.yml@v13.0.3
+    uses: microsoft/mu_devops/.github/workflows/AutoMerger.yml@bc161dc1de33e44b23acdd041f1875993dd68e86 # v13.0.3
     secrets: inherit
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 7179406313..abf247fda7 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -49,12 +49,12 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v7
+      uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
 
 
     - name: Install Python
-      uses: actions/setup-python@v7
+      uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
       with:
         python-version: '3.12'
 
@@ -102,12 +102,12 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v7
+      uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
 
 
     - name: Install Python
-      uses: actions/setup-python@v7
+      uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
       with:
         python-version: '3.12'
         cache: 'pip'
@@ -233,7 +233,7 @@ jobs:
 
     - name: Download cargo-make
       if: steps.cargo_make_cache.outputs.cache-hit != 'true'
-      uses: robinraju/release-downloader@v1.13
+      uses: robinraju/release-downloader@28fc21f50d76778e7023361aa1f863e717d3d56f # v1
       with:
         repository: 'sagiegurari/cargo-make'
         tag: '${{ steps.get_cargo_tool_details.outputs.cargo_make_version }}'
@@ -274,7 +274,7 @@ jobs:
       run: stuart_setup -c .pytool/CISettings.py -t DEBUG -a ${{ matrix.archs }} TOOL_CHAIN_TAG=${{ matrix.tool_chain_tag }}
 
     - name: Upload Setup Log As An Artifact
-      uses: actions/upload-artifact@v7
+      uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
       if: (success() || failure()) && steps.get_ci_file_operations.outputs.setup_supported == 'true'
       with:
         name: ${{ matrix.package }}-Setup-Log
@@ -288,7 +288,7 @@ jobs:
       run: stuart_ci_setup -c .pytool/CISettings.py -t DEBUG -a ${{ matrix.archs }} TOOL_CHAIN_TAG=${{ matrix.tool_chain_tag }}
 
     - name: Upload CI Setup Log As An Artifact
-      uses: actions/upload-artifact@v7
+      uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
       if: (success() || failure()) && steps.get_ci_file_operations.outputs.ci_setup_supported == 'true'
       with:
         name: ${{ matrix.package }}-CI-Setup-Log
@@ -301,7 +301,7 @@ jobs:
       run: stuart_update -c .pytool/CISettings.py -t DEBUG -a ${{ matrix.archs }} TOOL_CHAIN_TAG=${{ matrix.tool_chain_tag }}
 
     - name: Upload Update Log As An Artifact
-      uses: actions/upload-artifact@v7
+      uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
       if: success() || failure()
       with:
         name: ${{ matrix.package }}-Update-Log
@@ -367,7 +367,7 @@ jobs:
 
     - name: Attempt to Load CodeQL CLI From Cache
       id: codeqlcli_cache
-      uses: actions/cache@v6
+      uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
       with:
         path: ${{ steps.cache_key_gen.outputs.codeql_cli_ext_dep_dir }}
         key: ${{ steps.cache_key_gen.outputs.codeql_cli_cache_key }}
@@ -453,7 +453,7 @@ jobs:
         delete_dirs(build_path)
 
     - name: Upload Build Logs As An Artifact
-      uses: actions/upload-artifact@v7
+      uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
       if: success() || failure()
       with:
         name: ${{ matrix.package }}-Build-Logs
@@ -484,7 +484,7 @@ jobs:
             print(f'sarif_file_path={sarif_path}', file=fh)
 
     - name: Upload CodeQL Results (SARIF) As An Artifact
-      uses: actions/upload-artifact@v7
+      uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
       with:
         name: ${{ matrix.package }}-CodeQL-SARIF
         path: ${{ steps.env_data.outputs.sarif_file_path }}
@@ -492,7 +492,7 @@ jobs:
         if-no-files-found: warn
 
     - name: Upload CodeQL Results (SARIF) To GitHub Code Scanning
-      uses: github/codeql-action/upload-sarif@v4
+      uses: github/codeql-action/upload-sarif@d1ba80a13dd99fba24a470575428917156a28b43 # v4.37.5
       with:
         # Path to SARIF file relative to the root of the repository.
         sarif_file: ${{ steps.env_data.outputs.sarif_file_path }}
@@ -513,7 +513,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v7
+      uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
     - name: Create Empty SARIF
       shell: python
@@ -540,7 +540,7 @@ jobs:
             json.dump(sarif, f)
 
     - name: Upload Empty SARIF To GitHub Code Scanning
-      uses: github/codeql-action/upload-sarif@v4
+      uses: github/codeql-action/upload-sarif@d1ba80a13dd99fba24a470575428917156a28b43 # v4.37.5
       with:
         sarif_file: empty.sarif
         category: no-packages
diff --git a/.github/workflows/issue-assignment.yml b/.github/workflows/issue-assignment.yml
index 36ec8e6022..8ca99ac101 100644
--- a/.github/workflows/issue-assignment.yml
+++ b/.github/workflows/issue-assignment.yml
@@ -19,5 +19,5 @@ on:
 jobs:
   apply:
 
-    uses: microsoft/mu_devops/.github/workflows/IssueAssignment.yml@v18.0.7
+    uses: microsoft/mu_devops/.github/workflows/IssueAssignment.yml@131433bb4f29d68250154cc66096f04c19fe3ee9 # v18.0.7
     secrets: inherit
diff --git a/.github/workflows/label-issues.yml b/.github/workflows/label-issues.yml
index 3ed72f74bd..73589b8e2e 100644
--- a/.github/workflows/label-issues.yml
+++ b/.github/workflows/label-issues.yml
@@ -31,5 +31,5 @@ on:
 
 jobs:
   apply:
-    uses: microsoft/mu_devops/.github/workflows/Labeler.yml@v18.0.7
+    uses: microsoft/mu_devops/.github/workflows/Labeler.yml@131433bb4f29d68250154cc66096f04c19fe3ee9 # v18.0.7
     secrets: inherit
diff --git a/.github/workflows/label-sync.yml b/.github/workflows/label-sync.yml
index eff7da7217..be26ea0e42 100644
--- a/.github/workflows/label-sync.yml
+++ b/.github/workflows/label-sync.yml
@@ -25,5 +25,5 @@ on:
 jobs:
   sync:
 
-    uses: microsoft/mu_devops/.github/workflows/LabelSyncer.yml@v18.0.7
+    uses: microsoft/mu_devops/.github/workflows/LabelSyncer.yml@131433bb4f29d68250154cc66096f04c19fe3ee9 # v18.0.7
     secrets: inherit
diff --git a/.github/workflows/mu-pr-validation-pending.yml b/.github/workflows/mu-pr-validation-pending.yml
index 2c26ea679b..77604c6e59 100644
--- a/.github/workflows/mu-pr-validation-pending.yml
+++ b/.github/workflows/mu-pr-validation-pending.yml
@@ -33,14 +33,14 @@ jobs:
     steps:
       - name: Generate GitHub App Token
         id: app-token
-        uses: actions/create-github-app-token@v3
+        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
         with:
           app-id: ${{ vars.MU_ACCESS_APP_ID }}
           private-key: ${{ secrets.MU_ACCESS_APP_PRIVATE_KEY }}
           owner: ${{ github.repository_owner }}
 
       - name: Update PR Comment to Pending
-        uses: actions/github-script@v9
+        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
         with:
           github-token: ${{ steps.app-token.outputs.token }}
           script: |
@@ -87,7 +87,7 @@ jobs:
 
       - name: Set Pending Commit Status
         if: false  # TODO: Requires commit status write permission to be accepted at the org level first
-        uses: actions/github-script@v9
+        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
         with:
           github-token: ${{ steps.app-token.outputs.token }}
           script: |
diff --git a/.github/workflows/mu-pr-validation.yml b/.github/workflows/mu-pr-validation.yml
index be328c5ee2..1622929e9e 100644
--- a/.github/workflows/mu-pr-validation.yml
+++ b/.github/workflows/mu-pr-validation.yml
@@ -123,7 +123,7 @@ jobs:
           EOF
 
       - name: Upload PR Metadata
-        uses: actions/upload-artifact@v7
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: mu-qemu-pr-metadata
           path: metadata/pr-metadata.json
diff --git a/.github/workflows/pull-request-formatting-validator.yml b/.github/workflows/pull-request-formatting-validator.yml
index 8e538800b1..654d1bcc1b 100644
--- a/.github/workflows/pull-request-formatting-validator.yml
+++ b/.github/workflows/pull-request-formatting-validator.yml
@@ -27,7 +27,7 @@ jobs:
     steps:
       - name: Generate Token
         id: app-token
-        uses: actions/create-github-app-token@v3
+        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
         with:
           app-id: ${{ vars.MU_ACCESS_APP_ID }}
           private-key: ${{ secrets.MU_ACCESS_APP_PRIVATE_KEY }}
@@ -68,7 +68,7 @@ jobs:
 
       - name: Check for Validation Errors
         if: env.VALIDATION_ERROR
-        uses: actions/github-script@v9
+        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
         with:
           script: |
             core.setFailed('PR Formatting Validation Check Failed!')
diff --git a/.github/workflows/release-draft.yml b/.github/workflows/release-draft.yml
index 1e25813f5d..f3d660201a 100644
--- a/.github/workflows/release-draft.yml
+++ b/.github/workflows/release-draft.yml
@@ -29,5 +29,5 @@ jobs:
   draft:
     name: Draft Releases
 
-    uses: microsoft/mu_devops/.github/workflows/ReleaseDrafter.yml@v18.0.7
+    uses: microsoft/mu_devops/.github/workflows/ReleaseDrafter.yml@131433bb4f29d68250154cc66096f04c19fe3ee9 # v18.0.7
     secrets: inherit
diff --git a/.github/workflows/scheduled-maintenance.yml b/.github/workflows/scheduled-maintenance.yml
index 9d2d0b37e8..2f370a4dc9 100644
--- a/.github/workflows/scheduled-maintenance.yml
+++ b/.github/workflows/scheduled-maintenance.yml
@@ -28,7 +28,7 @@ jobs:
     steps:
       - name: Generate Token
         id: app-token
-        uses: actions/create-github-app-token@v3
+        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
         with:
           app-id: ${{ vars.MU_ACCESS_APP_ID }}
           private-key: ${{ secrets.MU_ACCESS_APP_PRIVATE_KEY }}
diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
index 23d625c5e8..929c0986a7 100644
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@@ -25,5 +25,5 @@ on:
 jobs:
   check:
 
-    uses: microsoft/mu_devops/.github/workflows/Stale.yml@v18.0.7
+    uses: microsoft/mu_devops/.github/workflows/Stale.yml@131433bb4f29d68250154cc66096f04c19fe3ee9 # v18.0.7
     secrets: inherit
diff --git a/.github/workflows/triage-issues.yml b/.github/workflows/triage-issues.yml
index 3a6fbecf46..e2ce108686 100644
--- a/.github/workflows/triage-issues.yml
+++ b/.github/workflows/triage-issues.yml
@@ -20,5 +20,5 @@ on:
 jobs:
   triage:
 
-    uses: microsoft/mu_devops/.github/workflows/IssueTriager.yml@v18.0.7
+    uses: microsoft/mu_devops/.github/workflows/IssueTriager.yml@131433bb4f29d68250154cc66096f04c19fe3ee9 # v18.0.7
     secrets: inherit