Faulty multi-factor authorization causes Twitter Privacy Breach:

FBI says multifactor authentication might not be secure:

Within the cyber security community, multi-factor authentication (MFA) is generally considered to be one of the safest and most effective ways to secure user accounts and user profiles. But now a special security alert from the Federal Bureau of Investigation (FBI) is alerting private industry partners that multi-factor authentication might not be nearly as effective as once thought. Quite simply, hackers are becoming more and more sophisticated. They are finding new ways to bypass multi-factor authentication using a mix of social engineering and technical hacks, and that should be a wakeup call for IT security leaders everywhere.

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