We’ve seen how useful Siri can be (and a few ways to have some fun with it), but should you also be worried about it? It seems that, when not properly configured, Siri has the potential to open up your iPhone to a lockscreen vulnerability, potentially giving an unauthorized user the ability to access your phone.
Even if you protect your lockscreen with a passcode, it’s possible to interact with Siri without needing to enter in the code. While that may not give someone looking to cause trouble with your phone quite the same level of access to the OS as the right code would, Siri is powerful enough that there’s still plenty someone could manage to do without your permission.
We can understand why you might want immediate access to Siri from the lockscreen, explaining why this functionality is present, but it seems to defeat the point of setting a code in the first place. The good news is that it’s a snap to disable; just turn Siri off from your lockscreen preferences. You give up a little convenience in the process, but you’d be keeping your phone that much more secure.