According to a new security update, Apple has fixed a lock screen bug plaguing iPhones in iOS 9. We wrote about the bug last week, which allowed a user to change contacts and access the phone's camera roll through a series of well-timed taps, all without unlocking the phone. While obscure and difficult to execute, the attack raised serious concerns for scenarios where a phone might be stolen or searched by police. The 9.0.2 update, released today, purports to fix the bug. "A lock screen issue allowed access to photos and contacts on a locked device," the report reads. "This issue was addressed by restricting options offered on a locked device."

It's not the first lock screen problem Apple has faced. Similar bugs popped up when Siri was first introduced with the iPhone 4S, and then recurred in the release of iOS 7 in 2013. In each case, the bug was fixed shortly after the initial release — and thanks to Apple's quickly deployed patches, phones have rarely been exposed to the bugs for longer than a few weeks. Still, as long as Apple looks to make more and more features available through Siri and other instant requests, lock screen bugs will continue to be a risk, and this may not be the last time the company accidentally circumvents its own protections.