From the original article referenced:

Between October 2017 and January 2018 the group exploited a loophole to siphon off more than £20m from Parker's trading account on an Australian-based cryptocurrency exchange.

Bitcoin scammers made so much money they 'handed out £5,000 gift cards in the street' https://www.manchestereveningnews.co.uk/news/uk-news/bitcoin-scammers-made-much-money-25990698

They didn't name and shame the exchange, unfortunately.

Though that happened half a decade ago, it's another reason to get your bitcoin off the exchanges.