The code flashes up on the locked screen of the stolen phone, leaving the thief to tap it into their own device. That verification passcode is sent by the bank to the stolen phone. Since it is the first time that card will have been used on the new device, a one-off security passcode is demanded. Once they have the phone and the card, they register the card on the relevant bank’s app on their own phone or computer. And bank cards can be stopped.īut the thief has a method which circumnavigates those basic safety protocols. Phones, of course, can be made inaccessible with the use of passwords and face or fingerprint unlocking. Someone in the UK is stealing smartphones and credit cards from people who have stored them in gym lockers, and is using the two items in combination to commit fraud: That potentially exposes accounts to a password reset attack or account takeover through password stuffing. The vulnerability, which ISMG verified, allows a hacker to spoof the registered phone number to disable two-factor authentication. “Your phone has been removed and SMS 2FA has been disabled from all accounts,” is the automated response. On top of that, it seems that the system has a new vulnerability:Ī researcher contacted Information Security Media Group on condition of anonymity to reveal that texting “STOP” to the Twitter verification service results in the service turning off SMS two-factor authentication.
Since then, engineers, operations specialists, IT staff, and security teams have been stretched thin attempting to adapt Twitter’s offerings and build new features per new owner Elon Musk’s agenda.
The meltdown comes less than two weeks after Twitter laid off about half of its workers, roughly 3,700 people. But users have been self-reporting issues on Twitter since the weekend, and WIRED confirmed that on at least some accounts, authentication texts are hours delayed or not coming at all. Not all users are having problems receiving SMS authentication codes, and those who rely on an authenticator app or physical authentication token to secure their Twitter account may not have reason to test the mechanism. Twitter is having intermittent problems with its two-factor authentication system: Failures in Twitter’s Two-Factor Authentication System
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