Software Secure Firewall Threat Defense
Platform Secure Firewall Threat Defense Virtual
Activity Onboard

Encrypted Traffic Handling Traffic Decryption Overview Decryption Rule and Policy Basics

Last updated: Jul 29, 2025

Decryption Rule and Policy Basics

This section discusses information you should keep in mind when creating your decryption policies and rules.


 

Because TLS and SSL are often used interchangeably, we use the expression TLS/SSL to indicate that either protocol is being discussed. The SSL protocol has been deprecated by the IETF in favor of the more secure TLS protocol, so you can usually interpret TLS/SSL as referring to TLS only.

For more information about SSL and TLS protocols, see a resource such as SSL vs. TLS - What's the Difference?