"Ransomware" has hit Australia, where Apple users woke this morning to find their devices locked, with the culprits demanding a payment of US$100 through PayPal.
The exact method by which hackers took control of the devices isn't yet known; some security experts suggested the hackers may simply have obtained a list of user IDs and passwords but others said it was more likely Apple's Australia and New Zealand servers had been compromised.
Apple support forums are flooded with complaints but at last word, the company hadn't offered much in the way of solutions.
The attacks are affecting iPhones, iPads, Macs and possibly other devices.
The ransom demands claim to be coming from Oleg Pliss. The somewhat unusual name appears to be a front chosen by the hackers for reasons known only to them at this point.
"There was a message on the screen ... saying that my device(s) had been hacked by Oleg Pliss," A Melbourne consumer told Australian Associated Press.