diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 33fc499d..7cb4ec57 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -23,6 +23,9 @@ on:
 # paths-ignore:
 #   - packages/wallet-native-sdk
 
+permissions:
+  contents: read
+
 jobs:
   analyze:
     name: Analyze
@@ -40,12 +43,17 @@ jobs:
         # Learn more about CodeQL language support at https://git.io/codeql-language-support
 
     steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          egress-policy: audit
+
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v3
+        uses: github/codeql-action/init@b8d3b6e8af63cde30bdc382c0bc28114f4346c88 # v2.28.1
         with:
           languages: ${{ matrix.language }}
           # If you wish to specify custom queries, you can do so here or in a config file.
@@ -56,7 +64,7 @@ jobs:
       # Autobuild attempts to build any compiled languages  (C/C++, C#, 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@b8d3b6e8af63cde30bdc382c0bc28114f4346c88 # v2.28.1
 
       # ℹ️ Command-line programs to run using the OS shell.
       # 📚 https://git.io/JvXDl
@@ -70,4 +78,4 @@ jobs:
       #   make release
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v3
+        uses: github/codeql-action/analyze@b8d3b6e8af63cde30bdc382c0bc28114f4346c88 # v2.28.1
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 9a071d38..49f84389 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -14,11 +14,16 @@ jobs:
         working-directory: ./
 
     steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          egress-policy: audit
+
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - name: Checkout node action
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version-file: '.nvmrc'
           cache-dependency-path: 'yarn.lock'
@@ -37,11 +42,16 @@ jobs:
         working-directory: ./
 
     steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          egress-policy: audit
+
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - name: Checkout node action
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version-file: '.nvmrc'
           cache-dependency-path: '**/yarn.lock'
@@ -67,11 +77,16 @@ jobs:
         node-version: [20.x, 22.x]
 
     steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          egress-policy: audit
+
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: ${{ matrix.node-version }}
           cache-dependency-path: '**/yarn.lock'
diff --git a/.github/workflows/notification.yml b/.github/workflows/notification.yml
index 1326f0f2..23e4384e 100644
--- a/.github/workflows/notification.yml
+++ b/.github/workflows/notification.yml
@@ -10,12 +10,20 @@ env:
   ON_CALL_WALLET: ${{ vars.ON_CALL_WALLET }}
   ON_CALL_BUILD_SQUAD: ${{ vars.ON_CALL_BUILD_SQUAD }}
 
+permissions:
+  contents: read
+
 jobs:
   checks:
     runs-on: ubuntu-latest
     outputs:
       skip: ${{ env.skip }}
     steps:
+    - name: Harden the runner (Audit all outbound calls)
+      uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+      with:
+        egress-policy: audit
+
     - name: Check spam labels
       if: ${{ contains(github.event.*.labels.*.name, 'spam') }}
       run: |
@@ -27,6 +35,11 @@ jobs:
     needs: checks
     if: ${{ vars.SLACK_ENABLED == 'true' && needs.checks.outputs.skip != 'true' }}
     steps:
+    - name: Harden the runner (Audit all outbound calls)
+      uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+      with:
+        egress-policy: audit
+
     - name: Set channel and mention
       run: |
         if ${{ contains(join(github.event.issue.labels.*.name), 'type:') }}; then
@@ -54,7 +67,7 @@ jobs:
         url: ${{ github.event.issue.html_url }}
 
     - name: Notify Slack
-      uses: slackapi/slack-github-action@v1.23.0
+      uses: slackapi/slack-github-action@007b2c3c751a190b6f0f040e47ed024deaa72844 # v1.23.0
       with:
         payload: |
           {
diff --git a/.github/workflows/playground.yml b/.github/workflows/playground.yml
index d3b1693a..b34bf2be 100644
--- a/.github/workflows/playground.yml
+++ b/.github/workflows/playground.yml
@@ -18,15 +18,20 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          egress-policy: audit
+
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Setup Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: "20"
           cache: yarn
       - name: Setup Pages
-        uses: actions/configure-pages@v4
+        uses: actions/configure-pages@1f0c5cde4bc74cd7e1254d0cb4de8d49e9068c7d # v4.0.0
         with:
           static_site_generator: next
       - name: Install dependencies
@@ -34,7 +39,7 @@ jobs:
       - name: Build and export with Next.js
         run: yarn deploy
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa # v3.0.1
         with:
           path: ./examples/testapp/out
 
@@ -45,6 +50,11 @@ jobs:
     runs-on: ubuntu-latest
     needs: build
     steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          egress-policy: audit
+
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e # v4.0.5
diff --git a/.github/workflows/release-canary.yml b/.github/workflows/release-canary.yml
index b980df08..e40bea5c 100644
--- a/.github/workflows/release-canary.yml
+++ b/.github/workflows/release-canary.yml
@@ -7,6 +7,9 @@ on:
         required: true
         default: ""
 
+permissions:
+  contents: read
+
 jobs:
   canary:
     name: Release canary
@@ -20,8 +23,13 @@ jobs:
     env:
       PACKAGE_VERSION: ${{ github.event.inputs.packageVersion }}
     steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          egress-policy: audit
+
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           submodules: recursive
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 449dc277..00b86b30 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -8,6 +8,9 @@ on:
         required: true
         default: ""
 
+permissions:
+  contents: read
+
 jobs:
   release:
     env:
@@ -20,8 +23,13 @@ jobs:
       pull-requests: write
       id-token: write
     steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          egress-policy: audit
+
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           submodules: recursive