diff --git a/.github/workflows/lint-build-test.yml b/.github/workflows/lint-build-test.yml
index b62e1b880..d33ea6761 100644
--- a/.github/workflows/lint-build-test.yml
+++ b/.github/workflows/lint-build-test.yml
@@ -10,27 +10,14 @@ jobs:
     strategy:
       matrix:
         node-version: [20.x, 22.x]
-    outputs:
-      child-workspace-package-names: ${{ steps.workspace-package-names.outputs.child-workspace-package-names }}
     steps:
-      - uses: actions/checkout@v4
-      - name: Install Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
         with:
-          node-version: ${{ matrix.node-version }}
-      - name: Install Yarn
-        run: corepack enable
-      - name: Restore Yarn cache
-        uses: actions/setup-node@v4
-        with:
-          node-version: ${{ matrix.node-version }}
-          cache: yarn
-      - run: PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD=1 yarn --immutable
-      - name: Fetch workspace package names
-        id: workspace-package-names
-        run: |
-          echo "child-workspace-package-names=$(yarn workspaces list --json | jq --slurp --raw-output 'map(.name) | @json')" >> "$GITHUB_OUTPUT"
-        shell: bash
+          is-high-risk-environment: false
+          cache-node-modules: ${{ matrix.node-version == '22.x' }}
+        env:
+          PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: 1
 
   lint:
     name: Lint
@@ -40,19 +27,12 @@ jobs:
       matrix:
         node-version: [22.x]
     steps:
-      - uses: actions/checkout@v4
-      - name: Install Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
         with:
-          node-version: ${{ matrix.node-version }}
-      - name: Install Yarn
-        run: corepack enable
-      - name: Restore Yarn cache
-        uses: actions/setup-node@v4
-        with:
-          node-version: ${{ matrix.node-version }}
-          cache: yarn
-      - run: PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD=1 yarn --immutable
+          is-high-risk-environment: false
+        env:
+          PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: 1
       - run: yarn lint
       - name: Require clean working directory
         shell: bash
@@ -70,19 +50,12 @@ jobs:
       matrix:
         node-version: [22.x]
     steps:
-      - uses: actions/checkout@v4
-      - name: Install Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
-        with:
-          node-version: ${{ matrix.node-version }}
-      - name: Install Yarn
-        run: corepack enable
-      - name: Restore Yarn cache
-        uses: actions/setup-node@v4
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
         with:
-          node-version: ${{ matrix.node-version }}
-          cache: yarn
-      - run: PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD=1 yarn --immutable
+          is-high-risk-environment: false
+        env:
+          PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: 1
       - run: yarn changelog:validate
       - name: Require clean working directory
         shell: bash
@@ -100,19 +73,12 @@ jobs:
       matrix:
         node-version: [22.x]
     steps:
-      - uses: actions/checkout@v4
-      - name: Install Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
-        with:
-          node-version: ${{ matrix.node-version }}
-      - name: Install Yarn
-        run: corepack enable
-      - name: Restore Yarn cache
-        uses: actions/setup-node@v4
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
         with:
-          node-version: ${{ matrix.node-version }}
-          cache: yarn
-      - run: PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD=1 yarn --immutable
+          is-high-risk-environment: false
+        env:
+          PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: 1
       - run: yarn build
       - name: Require clean working directory
         shell: bash
@@ -130,19 +96,12 @@ jobs:
       matrix:
         node-version: [20.x, 22.x]
     steps:
-      - uses: actions/checkout@v4
-      - name: Install Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
         with:
-          node-version: ${{ matrix.node-version }}
-      - name: Install Yarn
-        run: corepack enable
-      - name: Restore Yarn cache
-        uses: actions/setup-node@v4
-        with:
-          node-version: ${{ matrix.node-version }}
-          cache: yarn
-      - run: yarn --immutable
+          is-high-risk-environment: false
+        env:
+          PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: 1
       - name: Rebuild SQLite3
         run: |
           cd node_modules/better-sqlite3
@@ -158,6 +117,29 @@ jobs:
             exit 1
           fi
 
+  integration:
+    name: Integration Tests
+    runs-on: ubuntu-latest
+    needs: [prepare]
+    strategy:
+      matrix:
+        node-version: [20.x, 22.x]
+    steps:
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
+        with:
+          is-high-risk-environment: false
+        env:
+          PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: 1
+      - run: yarn test:integration
+      - name: Require clean working directory
+        shell: bash
+        run: |
+          if ! git diff --exit-code; then
+            echo "Working tree dirty at end of job"
+            exit 1
+          fi
+
   e2e:
     name: E2E Tests
     runs-on: ubuntu-latest
@@ -166,19 +148,10 @@ jobs:
       matrix:
         node-version: [22.x]
     steps:
-      - uses: actions/checkout@v4
-      - name: Install Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
-        with:
-          node-version: ${{ matrix.node-version }}
-      - name: Install Yarn
-        run: corepack enable
-      - name: Restore Yarn cache
-        uses: actions/setup-node@v4
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
         with:
-          node-version: ${{ matrix.node-version }}
-          cache: yarn
-      - run: yarn --immutable
+          is-high-risk-environment: false
       - name: Rebuild SQLite3
         run: |
           cd node_modules/better-sqlite3
@@ -201,33 +174,3 @@ jobs:
             echo "Working tree dirty at end of job"
             exit 1
           fi
-
-  integration:
-    name: Integration Tests
-    runs-on: ubuntu-latest
-    needs: [prepare]
-    strategy:
-      matrix:
-        node-version: [20.x, 22.x]
-    steps:
-      - uses: actions/checkout@v4
-      - name: Install Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
-        with:
-          node-version: ${{ matrix.node-version }}
-      - name: Install Yarn
-        run: corepack enable
-      - name: Restore Yarn cache
-        uses: actions/setup-node@v4
-        with:
-          node-version: ${{ matrix.node-version }}
-          cache: yarn
-      - run: yarn --immutable
-      - run: yarn test:integration
-      - name: Require clean working directory
-        shell: bash
-        run: |
-          if ! git diff --exit-code; then
-            echo "Working tree dirty at end of job"
-            exit 1
-          fi
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2cdf00de2..aa2deb3d9 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -5,6 +5,10 @@ on:
     branches: [main]
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'refs/heads/main') }}
+
 jobs:
   check-workflows:
     name: Check workflows
@@ -19,6 +23,18 @@ jobs:
         run: ${{ steps.download-actionlint.outputs.executable }} -color
         shell: bash
 
+  analyse-code:
+    name: Code scanner
+    needs: check-workflows
+    uses: ./.github/workflows/security-code-scanner.yml
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+    secrets:
+      SECURITY_SCAN_METRICS_TOKEN: ${{ secrets.SECURITY_SCAN_METRICS_TOKEN }}
+      APPSEC_BOT_SLACK_WEBHOOK: ${{ secrets.APPSEC_BOT_SLACK_WEBHOOK }}
+
   lint-build-test:
     name: Lint, build, and test
     needs: check-workflows
@@ -27,18 +43,15 @@ jobs:
   is-release:
     name: Determine whether this is a release merge commit
     needs: lint-build-test
+    if: github.event_name == 'push'
     runs-on: ubuntu-latest
-    # Filtering by `push` events ensures that we only release from the `main` branch, which is a
-    # requirement for our npm publishing environment.
-    # The commit author should always be 'github-actions' for releases created by the
-    # 'create-release-pr' workflow, so we filter by that as well to prevent accidentally
-    # triggering a release.
-    if: github.event_name == 'push' && startsWith(github.event.head_commit.author.name, 'github-actions')
     outputs:
       IS_RELEASE: ${{ steps.is-release.outputs.IS_RELEASE }}
     steps:
       - id: is-release
-        uses: MetaMask/action-is-release@v1
+        uses: MetaMask/action-is-release@dc4672b05e3b1d464cdaf783579b04a4e43f8b02
+        with:
+          commit-starts-with: 'Release [version],Release v[version],Release/[version],Release/v[version],Release `[version]`'
 
   publish-release:
     name: Publish release
@@ -54,7 +67,9 @@ jobs:
   all-jobs-complete:
     name: All jobs complete
     runs-on: ubuntu-latest
-    needs: lint-build-test
+    needs:
+      - analyse-code
+      - lint-build-test
     outputs:
       passed: ${{ steps.set-output.outputs.passed }}
     steps:
diff --git a/.github/workflows/publish-preview.yml b/.github/workflows/publish-preview.yml
index 3dcce39e9..5a333edc4 100644
--- a/.github/workflows/publish-preview.yml
+++ b/.github/workflows/publish-preview.yml
@@ -35,18 +35,10 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           PR_NUMBER: ${{ github.event.issue.number }}
-      - name: Install Node
-        uses: actions/setup-node@v4
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
         with:
-          node-version-file: '.nvmrc'
-      - name: Install Yarn
-        run: corepack enable
-      - name: Restore Yarn cache
-        uses: actions/setup-node@v4
-        with:
-          node-version-file: '.nvmrc'
-          cache: yarn
-      - run: yarn --immutable
+          is-high-risk-environment: true
       - name: Get commit SHA
         id: commit-sha
         run: echo "COMMIT_SHA=$(git rev-parse --short HEAD)" >> "$GITHUB_OUTPUT"
diff --git a/.github/workflows/publish-release.yml b/.github/workflows/publish-release.yml
index 452a9fc40..fc85cc25c 100644
--- a/.github/workflows/publish-release.yml
+++ b/.github/workflows/publish-release.yml
@@ -14,85 +14,60 @@ jobs:
       contents: write
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
         with:
-          ref: ${{ github.sha }}
-      - name: Install Node
-        uses: actions/setup-node@v4
-        with:
-          node-version-file: '.nvmrc'
-      - name: Install Yarn
-        run: corepack enable
-      - name: Restore Yarn cache
-        uses: actions/setup-node@v4
-        with:
-          node-version-file: '.nvmrc'
-          cache: yarn
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ./packages/**/dist
-            ./node_modules/.yarn-state.yml
-          key: ${{ github.sha }}
+          is-high-risk-environment: true
       - uses: MetaMask/action-publish-release@v3
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      - run: yarn --immutable
       - run: yarn build
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: publish-release-artifacts-${{ github.sha }}
+          include-hidden-files: true
+          retention-days: 4
+          path: |
+            ./packages/**/dist
+            ./node_modules/.yarn-state.yml
 
   publish-npm-dry-run:
+    name: Dry run publish to NPM
     runs-on: ubuntu-latest
     needs: publish-release
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
         with:
+          is-high-risk-environment: true
           ref: ${{ github.sha }}
-      - name: Install Node
-        uses: actions/setup-node@v4
+      - name: Restore build artifacts
+        uses: actions/download-artifact@v4
         with:
-          node-version-file: '.nvmrc'
-      - name: Install Yarn
-        run: corepack enable
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ./packages/**/dist
-            ./node_modules/.yarn-state.yml
-          key: ${{ github.sha }}
-          fail-on-cache-miss: true
-      - name: Dry Run Publish
-        # omit npm-token token to perform dry run publish
+          name: publish-release-artifacts-${{ github.sha }}
+      - name: Dry run publish to NPM
         uses: MetaMask/action-npm-publish@v5
         with:
           slack-webhook-url: ${{ secrets.SLACK_WEBHOOK_URL }}
           subteam: S042S7RE4AE # @metamask-npm-publishers
-        env:
-          SKIP_PREPACK: true
 
   publish-npm:
+    name: Publish to NPM
     environment: npm-publish
     runs-on: ubuntu-latest
     needs: publish-npm-dry-run
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
         with:
+          is-high-risk-environment: true
           ref: ${{ github.sha }}
-      - name: Install Node
-        uses: actions/setup-node@v4
+      - name: Restore build artifacts
+        uses: actions/download-artifact@v4
         with:
-          node-version-file: '.nvmrc'
-      - name: Install Yarn
-        run: corepack enable
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ./packages/**/dist
-            ./node_modules/.yarn-state.yml
-          key: ${{ github.sha }}
-          fail-on-cache-miss: true
-      - name: Publish
+          name: publish-release-artifacts-${{ github.sha }}
+      - name: Publish to NPM
         uses: MetaMask/action-npm-publish@v5
         with:
           npm-token: ${{ secrets.NPM_TOKEN }}
-        env:
-          SKIP_PREPACK: true