We have updated ConfigServer Security & Firewall (CSF) in Webuzo from version 15.0 to version 16.1. 
This is a security release, it fixes firewall rule validation, strengthens input sanitization, hardens how remote lists and dynamic DNS entries are processed, improves the security of Messenger and reCAPTCHA handling, and adds support for newer OpenSSH versions.

These improvements make your server more resilient against malformed or malicious input and reduce the risk of misuse of csf's firewall and messenger features.

No action is required from users.
To ensure all Webuzo servers are protected, we have already initiated a one-time automatic update of the CSF package. Your server will automatically receive CSF 16.1 along with these security fixes.

We recommend keeping automatic updates enabled so your server continues to receive future security and stability updates.