diff --git a/insecure-hashes.rs b/insecure-hashes.rs
new file mode 100644
index 0000000..949a902
--- /dev/null
+++ b/insecure-hashes.rs
@@ -0,0 +1,20 @@
+use md2::{Md2};
+use md4::{Md4};
+use md5::{Md5};
+use sha1::{Sha1};
+use sha2::{Sha256};
+
+// ruleid: insecure-hashes
+let mut hasher = Md2::new();
+
+// ruleid: insecure-hashes
+let mut hasher = Md4::new();
+
+// ruleid: insecure-hashes
+let mut hasher = Md5::new();
+
+// ruleid: insecure-hashes
+let mut hasher = Sha1::new();
+
+// ok: insecure-hashes
+let mut hasher = Sha256::new();