diff --git a/.gitignore b/.gitignore
index e5a154c..004754c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,3 +33,22 @@ shopdb_backup_*.sql
 # OS files
 .DS_Store
 Thumbs.db
+
+# Secrets and credentials (defensive)
+.env
+.env.*
+!.env.example
+!.env.*.example
+*.pem
+*.key
+id_rsa
+id_rsa.*
+*.ppk
+*.p12
+*.pfx
+secrets.json
+secrets.yaml
+secrets.yml
+*_secret
+*_secrets
+credentials.json