diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..50ef5ce
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,19 @@
+
+# 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