Every open port is a potential entry point; close all but the essential ones.
Confirming the OS and applications are on the latest security patches. security servers
Ensures recovery after a ransomware or hardware failure (3-2-1 Rule). Fewer running apps mean a smaller "attack surface". Industry Standard Benchmarks Every open port is a potential entry point;
Validating that security events (logins, failed attempts) are recorded and alerted. Critical Security Checklist Why it Matters Disable Root SSH security servers