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Wireless

Princeton study finds US carrier flaws that enable SIM swap attacks

Monday 13 January 2020 | 22:22 CET | News
A Princeton study found that five US carriers have flaws that enable straightforward SIM swap attacks as a result of the insecure authentication challenges they use. The researchers examined the authentication procedures used by five prepaid carriers when a customer attempted to change their SIM card. These procedures are an important line of defense against attackers who seek to hijack victims' phone numbers by posing as the victim and calling the carrier to request that service be transferred to a SIM card the attacker possesses.

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Categories: Mobile & Wireless
Countries: United States
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