Category Archives: Mobile Networks

German drain bank accounts using SS7 flaw to cheat SMS 2FA

By | May 5, 2017

Hackers have drained victims’ accounts secured with 2-factor authentication by exploiting a flow in the SS7 protocol, allowing them to receive confirmation messages. The German operator O2 was attacked. Signaling System 7 is a set of protocols used to connect most of the world’s telephone and cellular communications. The protocols were defined in the 80s,… Read More »