What is SIM box detection?

SIM box detection is a way to detect fraudulent application-to-person (A2P) messaging sent using a SIM box via person-to-person (P2P) routes.

A SIM Box is a particular device that contains multiple unregistered and disposable pre-paid SIM cards. These cards deliver A2P or fraudulent messaging at a meager cost (or even no cost), giving fraudsters a high-profit margin. SIM Box detection is one of the operators’ most challenging fraud prevention tasks.

Analyzing P2P traffic is extremely sensitive because:

All preventative methods must filter fraudulent traffic quickly and accurately without impacting regular traffic.

SIM swapping is when fraudsters take control of your phone number. They can access your bank accounts, social media accounts, and more with your phone number. SIM swap attacks do not happen overnight. Before they try to impersonate you, they harvest your data. They use several tactics like phishing emails or malware.