If an app with a compromised signature asks for access to your keychain
This app has been securely signed, but the signature has been compromised, indicating that unauthorized modifications may have been made to the app. Keychain Access requests your permission to provide the password to the app.
Important: Proceed with caution. Consider reinstalling the app or restoring it from a backup.
Choose one of the following:
Allow Once: Grant access this time only. You’ll be asked again the next time the app needs the password.
Always Allow: Let the app retrieve the password from your keychain without any further authorization or notice from you. Because the identity cannot be securely established, this option may not be available.
Deny: Prevent the app from retrieving the password from your keychain. You need to enter the password manually.