About intrusion prevention system policies
Intrusion Prevention policies stop intrusions such as known and zero-day attacks, unwanted access and denial of service.
The Intrusion Prevention System is based on Snort Open Source software. It uses rules supplied by Smoothwall from https://rules.emergingthreats.net/.
You can use rulesets supplied by www.snort.org by applying an Oinkcode, see our help topic, Managing custom intrusion signatures.