Security Tip: The Ports Attackers Scan First (And How to Lock Them Down)
Attackers don't knock on your website's front door — they scan every port on your server, thousands of times a day, looking for an open one. An open port is an invitation to try: automated bots probe the most common ones first, and if anything answers, they test it for weak passwords and known bugs. Here are the ports they target most — and what to do about each: 21 (FTP) — Old, insecure file transfer. If you're not actively using FTP, close it and switch to SFTP. 22 (SSH) — Your server's admin
🎯 Vulnerability: Web Security Vulnerability
💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.