diff --git a/ada/security/pam/u2f.nix b/ada/security/pam/u2f.nix
new file mode 100644
index 0000000..9d55bf8
--- /dev/null
+++ b/ada/security/pam/u2f.nix
@@ -0,0 +1,11 @@
+_: {
+  security = {
+    pam = {
+      u2f = {
+        enable = true;
+        cue = true;
+        # control = "required";
+      };
+    };
+  };
+}