diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
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--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,11 @@
+repos:
+  - repo: https://github.com/gitleaks/gitleaks
+    rev: v8.30.1
+    hooks:
+      - id: gitleaks
+
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v6.0.0
+    hooks:
+      - id: detect-private-key
+      - id: check-added-large-files
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diff --git a/submissions/lab3.md b/submissions/lab3.md
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