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Two-Factor Authentication Fail: Identity Thieves Hijack Cellphone Accounts to Go After Virtual Currency (nytimes.com)

Reader Cludge shares an NYT report: Hackers have discovered that one of the most central elements of online security -- the mobile phone number -- is also one of the easiest to steal. In a growing number of online attacks, hackers have been calling up Verizon, T-Mobile U.S., Sprint and AT&T and asking them to transfer control of a victim's phone number to a device under the control of the hackers. Once they get control of the phone number, they can reset the passwords on every account that uses the phone number as a security backup -- as services like Google, Twitter and Facebook suggest. "My iPad restarted, my phone restarted and my computer restarted, and that's when I got the cold sweat and was like, 'O.K., this is really serious,'" said Chris Burniske, a virtual currency investor who lost control of his phone number late last year. A wide array of people have complained about being successfully targeted by this sort of attack, including a Black Lives Matter activist and the chief technologist of the Federal Trade Commission. The commission's own data shows that the number of so-called phone hijackings has been rising. In January 2013, there were 1,038 such incidents reported; by January 2016, that number had increased to 2,658. But a particularly concentrated wave of attacks has hit those with the most obviously valuable online accounts: virtual currency fanatics like Mr. Burniske. Within minutes of getting control of Mr. Burniske's phone, his attackers had changed the password on his virtual currency wallet and drained the contents -- some $150,000 at today's values. Most victims of these attacks in the virtual currency community have not wanted to acknowledge it publicly for fear of provoking their adversaries. But in interviews, dozens of prominent people in the industry acknowledged that they had been victimized in recent months.

4 of 76 comments (clear)

  1. Why include this fella? by bogaboga · · Score: 3, Insightful

    A wide array of people have complained about being successfully targeted by this sort of attack, including a Black Lives Matter activist (bold mine)

    Why include this fella, really?

    That is out of 1,000 victims or so...?

  2. Done to me ... Verizon is the weakest link by NothingWasAvailable · · Score: 4, Insightful

    While I was out having dinner, Verizon called me three times to verify if I'd lost my phone. Each time I said no, the second time I was asked if I wanted to add a passcode and lock the account. I did. (It was Verizon, I checked later and they had the logs of all three calls to me, but I'm not sure if callers can spoof the Verizon internal caller ID)

    Later that evening, I found myself locked out of my email accounts. I could see it happening in real time, but couldn't stop it. I called Verizon by landline and was told that they'd activated my spare iPhone after I dropped my phone in a pool. NO! I might have said a number of harsh words to them.

    In the meantime, American Express had called my cell and emailed me to confirm a dodgy transaction, and the folks who had my phone number and email confirmed the transaction. By the time I called Amex, it was too late (although I ended up with no liability)

    I tried to file a complaint with the local PD and was told "I don't have time for this" by the receptionist.

  3. Re:The system works just fine by unrtst · · Score: 4, Insightful

    I see no part of the two factor scheme that failed. The title is misleading, at best.

    This was password recovery/reset that was exploited, not the two factor auth. In fact, this sort of issue is PRECISELY why two factor should be used, because one of the factors may be compromised, and the account would still be secure. The auth still was secure, but the attackers exploited the weak password reset security - weakest link and all that.

  4. Re:Not Two Factor by Anonymous Coward · · Score: 3, Insightful

    True security adds a "secret" to the two-factor authentication. Something known (password), something unknown (a PIN that I memorized), and something random (Google Authenticator - okay, pseudo-random). Not something resetable (password), something resetable (recovery account), and something stealable/duplicatable (phone or phone number).

    And no, those probably aren't real words.