diff --git a/modules/security.nix b/modules/security.nix
new file mode 100644
index 0000000..2ed9cc3
--- /dev/null
+++ b/modules/security.nix
@@ -0,0 +1,8 @@
+{
+  security.pam.services = {
+    login.u2fAuth = true;
+    sudo.u2fAuth = true;
+  };
+
+  security.pam.u2f.authFile = ../keys/u2f_mappings;
+}