NETNUMBER Signaling Firewall (SFW)

Experts have been warning for many years about SS7 security concerns and how SS7 can be abused to redirect calls, track locations, and capture text messages. SS7 is very slowly being replaced by newer signaling protocols like Diameter, but during this extended period of gradual migration, these security concerns remain.

The widespread adoption of Diameter and SIP does not mitigate against these concerns. Instead, they are amplified by the all-IP nature of these protocols, which has been shown to make them even more vulnerable to security exploits than SS7.

Add to this the growth of various forms of signaling derived revenue fraud and it becomes clear that operators need to deploy a highly secure signaling architecture that addresses not just these concerns, but also protects the network against new security threats that will inevitably emerge again and again.