How Can You Secure Risky Open Ports?

This article explains what network ports are, describes common and risky ports (e.g., HTTP, FTP, SMTP, DNS, SSH, Telnet), and outlines how open or misconfigured ports can be exploited—leading to incidents like DDoS or unauthorized access. It recommends scanning, understanding port usage, and closing or monitoring unnecessary external ports, and highlights SecurityScorecard’s platform for external scanning and security ratings as a way to identify and mitigate these risks.