4 years ago
SIM-swap attacks made easy thanks to lax carrier security
An alarming test carried out by Princeton shows that the five largest US carriers fail to properly protect their customers against so-called SIM-swap attacks. They were able to persuade the carriers to assign phone numbers to new SIMs without successfully answering any of the standard security questions. Once a phone number has been reassigned to a SIM in the possession of an attacker, they can reset passwords even on accounts protected by two-factor authentication (2FA)…
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