Well, that didn't take long: A bug in the new ios 7 allows anyone to bypass an iPhone's lockscreen in just seconds.
A 36-year-old Spanish soldier, Jose Rodriguez, discovered the bug and showed a Forbes writer how it's done.
"… Anyone can exploit the bug by swiping up on the lockscreen to access the phone's 'control center' and then opening the alarm clock. Holding the phone's sleep button brings up the option to power it off with a swipe. Instead, the intruder can tap 'cancel' and double click the home button to enter the phone's multitasking screen," according to the Forbes article. "That offers access to its camera and stored photos, along with the ability to share those photos from the user's accounts, essentially allowing anyone who grabs the phone to hijack the user's email, Twitter, Facebook or Flickr account."
A spokesman for Apple told Forbes the company is aware of the issue and plans to fix it in a future software update.
The Forbes story also offers a workaround, courtesy of another reader, to protect data in the meantime: Stop "control center" from appearing on the lockscreen by accessing "settings" and then "control center."