Easy way to bypass passcode lock screens on iPhones, iPads running iOS 10

The vulnerability allowing anyone to bypass the passcode lock screen still exists in iOS 10.3.2 and the 10.3.3 beta

Update for iOS 10.3.2

Apple still has not patched the hole allowing you to bypass the iPhone lock screen. As of iOS 10.3.2 (and the 10.3.3 beta), you can still trick Siri into getting into a person’s iPhone.

It works like this:

  • Press the home button using a finger not associated with your fingerprint authentication, prompting Siri to wake up.
  • Say to Siri: Cellular data.

Siri will then open the cellular data settings where you can turn off cellular data.

Anyone can do this—it doesn’t have to be the person who “trained” Siri.

By also turning off Wi-Fi, you cut off her connectivity access. You will get an error saying, “Siri not available. You are not connected to the internet.” But you don’t care about that error because you have already bypassed the iPhone lock screen.

Not only can someone trick Siri to turn off cellular data, but they can trick her to read unread text messages and post to Facebook—a major privacy issue.

To do it, again prompt Siri to wake up using a finger not associated with the phone’s authentication. Then say, “Read messages,” and Siri will read any unread text messages from the lock screen. Or say, “Post to Facebook,” and Siri will ask you what you want to post to Facebook.

We tested this with a staffer’s iPhone 7, with someone other than the iPhone owner giving the commands. Siri let the person right in.

While we wait for Apple to patch the hole, your best option is to disable Siri from the lock screen.

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