. Intrusion Prevention Service (IPS) is a fully integrated security subscription for all Watch Guard Firebox M200 appliances. It works in tandem with the application layer content inspection of the Watch Guard Firebox M200 to provide real-time protection against network threats including spyware SQL injections cross-site scripting & buffer overflows. IPS scans traffic on all major protocols using continually updated signatures to detect & block all types of threats. & because IPS is integrated with Watch Guard Firebox M200 security appliances you have an easy-to-manage cost-effective solution without additional hardware to purchase & maintain..