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Security Flaw in iOS 9.3.1 Allows Access to iPhone Photos and Contacts
The YouTube video, uploaded by Jose Rodriguez and first spotted by The Daily Dot, depicts a user performing a Siri search followed by a series of relatively simple steps, one of which involves 3D Touch, limiting the exploit to iPhone 6s and 6s Plus devices.
The procedure starts by invoking Siri on the locked phone by holding the home button or using the "Hey, Siri" function, and then asking the personal assistant to initiate a Twitter search. When the returned results include contact details such as an email address, a 3D Touch gesture is used on the contact information to bring up a Quick Actions menu. Tapping "Add to Existing Contact" then brings up the iPhone's Contacts list. By selecting a contact and opting to add a photo to the entry, the phone's photo library can also be freely accessed.
The flaw is only applicable if the iPhone owner has previously granted Siri permission to access Twitter account information as well as to Contacts or Photos, operations which require establishing ownership of the device with the passcode or Touch ID. Additionally, if the iPhone has exited a Touch ID grace period, a passcode is still required before using Siri.
Users worried about the vulnerability can protect themselves by ensuring Siri's access to Twitter and Photos is disabled. On your device, go to Settings -> Privacy -> Twitter and if Siri is listed, turn off its access. Likewise, in Privacy -> Photos, turn any listing of Siri access to the Off position. Revoking Siri's access to your Contacts requires the more drastic action of disabling Siri lock screen activation. To do so, go to Settings -> Touch ID & Passcode and turn off the Siri switch.
Apple released iOS 9.3.1 to the public last week, marking the first update to iOS 9 since iOS 9.3 launched on March 21. iOS 9.3.1 came just over a week after the launch of iOS 9.3 and brought a fix for a significant web link crashing issue that affected many iOS users.