In order to prevent the above attacks, it is essential for operators to analyze which source numbers are associated with which countries, networks, hubs and businesses to gain and maintain control of their threat landscape. As always, the time factor and reliable data is crucial. Analysts and investigators are doing their best to prevent attacks and stay vigilant of the threat landscape. With the help of signaling firewall solutions they are already able to provide proactive protection, but still, the limited visibility of global fraud trends takes its toll.
Call them lazy or smart, fraudsters transmit successfully launched attacks to similar organizations on a different campaign. For this reason, verifying numbers has never been more important, and the screening of incoming communication for their trustworthy origin is a safe way to prevent fraud. The good news is, someday, there will be a platform to tell in a very automated and a very curated way the details of suspicious IP-addresses, number ranges, IMSIs and fraud numbers.