diff --git a/systems/x86_64-linux/Ohybke/default.nix b/systems/x86_64-linux/Ohybke/default.nix
index 35ee7fe..5bd4650 100644
--- a/systems/x86_64-linux/Ohybke/default.nix
+++ b/systems/x86_64-linux/Ohybke/default.nix
@@ -73,13 +73,18 @@
   services.displayManager.sddm.enable = true;
   services.desktopManager.plasma6.enable = true;
 
+  # Security
+  security.rtkit.enable = true; # For Sound
+  security.pam.services = {
+    login.u2fAuth = true;
+    sudo.u2fAuth = true;
+  };
 
   # Printing
   services.printing.enable = true;
 
   # Sound
   services.pulseaudio.enable = false;
-  security.rtkit.enable = true;
   services.pipewire = {
     enable = true;
     alsa.enable = true;