Facebook Adds Mobile Authentication
Summary: Facebook introduced an opt-in "Login Approvals" feature that requires users to share a mobile phone number and enter a six-character alphanumeric code sent by text message when a login comes from an unrecognized device. Facebook intern Andrew Song described the feature in a blog post, and Krebs noted it is unclear whether enabling it changes any existing privacy settings.
Why it matters: The feature depends on users handing Facebook their mobile number, and Krebs quotes Bruce Schneier's warning that users are not Facebook's customers but its product, with advertisers as the real customers.
Read the original at Krebs on Security ↗
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