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SIM Box Detection

SIM box detection is a way to detect fraudulent application-to-person (A2P) messaging.

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 are used to deliver A2P or fraudulent messaging at a very low cost (or even no cost), giving fraudsters a high-profit margin.
SIM Box detection is one of the most challenging fraud prevention tasks operators currently face. Analyzing P2P traffic is extremely sensitive because:

  • There are many senders
  • Most traffic is genuine and must be protected
  • Fraudsters react fast to preventative measures by developing new methods

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

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