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News

Facebook Launches Two-Factor Authentication Option For Mobile Users

Tenable Network Security : 14 October, 2010  (Technical Article)
One-Time Passwords available by text messages for facebook users as part of the latest security improvements offered by the popular social networking site
Facebook will be bringing (2FA) for logging in to the site using mobile phones. Now, if users are concerned about the security of a PC that they are using, they can send a text to Facebook who will send the user at OTP that lasts for 20 minutes. Marcus comments:

"Two factor authentication is and always has been a crucial capability so what Facebook has announced is great because the two factors they are asking for are not merely 'something you know + something you have' but 'something you know + something you value a lot'.

"We've seen in the past that people are willing to give away an authentication credential in return for a chocolate bar, however, most people are strongly acculturated to hang onto their phones.

"Even more importantly, a mobile phone is a high value item - a spammer or hacker would have to buy a new phone each time one of their accounts got shut down while the associated phone got blacklisted. What Facebook has done is to bring a high external cost into the equation. It's a very good move."
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