Hi,

I would like to share with you a new security plugin for Roundcube: GuardianKey Auth.

GuardianKey is a solution to protect systems against authentication attacks (Brute force, phishing password, etc). It uses Artificial Intelligence to detect if access attempts are from legitimate users.  You can notify your users, block or log the attempts.

Currently it is free for up to 100 users.

More information:
https://guardiankey.io/products/guardiankey-for-roundcube/
https://plugins.roundcube.net/packages/guardiankey/guardiankey_auth