Kerem Albayrak claimed to be a spokesman for a hacking group called the Turkish Crime Family. Claimed to have access to 319 million iCloud accounts and threatened to factory reset accounts unless Apple paid ransom. Albayra pleaded guilty to one count of blackmail and two counts of “unauthorized acts with intent to impair the operation of or prevent/hinder access to a computer” He was sentenced to a two year suspended jail term, 300 hours unpaid work in the neighbourhood, and a six-month electronic curfew.
Source: https://thehackernews.com/2019/12/hacker-who-tried-to-blackmail-apple-for.html