diff --git a/gpgui/src-tauri/src/auth.rs b/gpgui/src-tauri/src/auth.rs
index 2bcaea3..2cd4846 100644
--- a/gpgui/src-tauri/src/auth.rs
+++ b/gpgui/src-tauri/src/auth.rs
@@ -64,9 +64,9 @@ impl TryFrom<Option<&str>> for AuthRequest {
 pub(crate) struct AuthData {
     #[redact]
     username: Option<String>,
-    #[redact(fixed = 10)]
+    #[redact]
     prelogin_cookie: Option<String>,
-    #[redact(fixed = 10)]
+    #[redact]
     portal_userauthcookie: Option<String>,
 }
 
@@ -84,8 +84,11 @@ impl AuthData {
     }
 
     fn check(&self) -> bool {
-        self.username.is_some()
-            && (self.prelogin_cookie.is_some() || self.portal_userauthcookie.is_some())
+        let username_valid = self.username.clone().is_some_and(|username| !username.is_empty());
+        let prelogin_cookie_valid = self.prelogin_cookie.clone().is_some_and(|val| val.len() > 5);
+        let portal_userauthcookie_valid = self.portal_userauthcookie.clone().is_some_and(|val| val.len() > 5);
+
+        username_valid && (prelogin_cookie_valid || portal_userauthcookie_valid)
     }
 }