Now is a good time to make sure all the data on your iPhone is backed up in the cloud. CBS Los Angeles reports that the huge iOS ransomware scam that first popped up in Australia on Tuesday has now made its way to the United States. Hackers have figured out a way to exploit the Find My iPhone feature in iOS to lock up users’ iPhones and iPads and demand a ransom from them if they ever want to use their devices again

An Apple store employee tells CBS Los Angeles that anyone who’s affected by this malicious attack ought to bring their iPhone into an Apple store so that it can be unlocked. The problem, though, is that doing this will wipe out all of the data that you have on your iPhone, which is why it’s important to make sure everything you have is backed up on iCloud.

Apple issued a statement earlier on Wednesday that denied the reported ransomware attacks had anything to do with a recent iCloud hack and it said that “impacted users should change their Apple ID password as soon as possible and avoid using the same user name and password for multiple services.” The company still hasn’t given an explanation for what exactly caused this potentially massive security breach.

Prior to joining BGR as News Editor, Brad Reed spent five years covering the wireless industry for Network World. His first smartphone was a BlackBerry but he has since become a loyal Android user.