Port 443

Definitions

1. The well-known TCP port commonly used for HTTPS and other TLS-protected web traffic. In security operations, references to port 443 often matter because many legitimate services use it, and attackers also hide malicious traffic there to blend in with normal encrypted web activity.

   In plain English: The standard network port most commonly used for secure web traffic.

   Example: "The beacon used port 443 to look like ordinary web traffic even though the payload was not standard HTTPS."

Related Terms

• NAT Security
• Packet Filter
• Port 80
• Port Forwarding
• Private Network
• Public Network
• Restricted Network
• Container Port