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'The attacks we found only scratch the surface of what is possible': Experts say so-called 'Proactive SIM' cards can hijack smartphones, IoT devices and even EV chargers
Researchers warn that "Proactive SIM" cards can exploit a decades-old telecom standard to execute commands on host devices without user interaction. The vulnerability affects smartphones, IoT devices, and EV chargers. Because the SIM sits inside the device and communicates directly with its processor, a compromised or malicious card can run code invisibly, and researchers say discovered attacks likely represent only a fraction of what's possible.