Onchain sleuth ZachXBT said he had identified the mysterious whale who made $20 million in profits from highly leveraged trades on Hyperliquid and GMX as a British hacker known as William Parker.

According to ZachXBT’s March 20 X post, Parker — who was previously known as Alistair Packover before changing his name — was arrested last year for allegedly stealing around $1 million from two casinos in 2023. 

Parker also made headlines a decade ago for allegations of hacking and gambling, ZachXBT said.

“It is abundantly clear WP/AP has not learned his lesson over the years after serving time for fraud and will likely continue gambling,” ZachXBT said.

Related: Hyperliquid ups margin requirements after $4 million liquidation loss

ZachXBT said his findings are based on a phone number provided by a person who allegedly received a payment from the whale trader’s wallet address. 

He also said that.