(TELEGRAPH) — Owners of iPhones and iPads have been targeted by a hacker who is freezing iOS devices and demanding a ransom of up to £55 to unlock them.

The majority of the attacks have taken place in Australia although there are also reports of Britons being affected.

It appears that the hacker, who goes by the name Oleg Pliss, has managed to exploit the Find My iPhone feature which can track and remotely lock stolen devices.

Users have been told to send ransoms of between $50 and $100 Australian dollars (up to £55) to a PayPal account in order to have their devices unlocked.

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