Happily, the attack can apparently be deterred by having a strong unlock passcode, which you already have set, right?
Owners of Mac and iOS devices have found their iPhones and iPads held for ransom through a hack that targets the Find My iPhone and Find My Mac features on these devices to trigger a remote lock of the device.
The Find My iPhone feature is meant to allow users to track missing devices on a map, remotely lock the phone in the event that the device is lost or stolen and display a message so that those who find it will see that custom message. First surfacing in numerous reports in Australia yesterday, this attack claims through the custom message to be perpetrated by an Oleg Pliss, likely a pseudonym given that the most visible person by that name is a software engineer at Oracle. The malicious hacker responsible asks through the displayed message for users to pay $100 through PayPal for the privilege of unlocking their phones.