Secure Firewall Threat Defense Device Support Specifics
Secure Firewall Threat Defense is Cisco's next generation firewall. It can be installed on a variety of hardware and virtual platforms; see the Cisco Secure Firewall Threat Defense Compatibility Guide.
Snort
Snort 3 is the default inspection engine for threat defense starting in threat defense Version 6.7 (with device manager) and Version 7.0 (with management center).
Important | If you are still using the Snort 2 inspection engine, switch to Snort 3 now for improved detection and performance. Snort 2 will be deprecated in a future release and will eventually prevent threat defense upgrade. |