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

Encrypted Traffic Handling Traffic Decryption Overview

Last updated: Jul 29, 2025

Traffic Decryption Overview

The following topics provide an overview of Transport Layer Security/Secure Sockets Layer (TLS/SSL) inspection, discuss the prerequisites for TLS/SSL inspection configuration, and detail deployment scenarios.


 

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?