Facebook has
tweaked its mobile login system — a system that the company says is used more than 850 million times each month.
The primary change is an extra layer of user control over sharing. Mobile apps that use Facebook login are now required to ask about sharing on Facebook in a separate step from the login itself:
Don’t want to share your music playlist or workout routine with friends? You can choose to skip sharing altogether. Clearly separating sharing means people can decide whether they only want to use Facebook Login for fast registration without also sharing back to Facebook. If you want to share later, you still can.
Facebook also claims that the login system itself is “up to 31 percent faster” on mobile devices, according to its own internal data. The company says 81 percent of the top 100 grossing iOS apps, and 62 percent of the top 100 grossing Android apps, offer Facebook login.
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