How Hackers Use Port Scanning to Breach Networks (And How to Stop Them)

Introduction Hackers don’t guess—they scan. Learn how attackers exploit ports and how to defend your systems. Hacker Techniques Port Sweeping: Scanning ranges (e.g., 1-1024) for vulnerabilities. Banner Grabbing: Identifying services (e.g., Apache 2.4) to exploit known flaws. Defensive Strategies Limit Exposure: Close ports like 135-139 (NetBIOS). Use a Firewall: Block unsolicited inbound traffic. Monitor Logs: Detect repeated scan attempts. Tool Recommendation: Run stealth checks with https://theportchecker.com to see what hackers see. Example: A hospital thwarted an attack by noticing Port 443 scans before encryption was bypassed.