San Francisco: A blockchain used by several cryptocurrency exchanges to move bitcoin has been hacked for US$320mil, the latest in a spate of breaches to shake confidence in digital-asset security.

Roughly 4,000 of the 4,200 bitcoin held in a wallet used by Liquid Network were taken, the platform operator said in a post on X.

It said the perpetrators appear to be “white-hat hackers” who exploit security flaws and typically return the funds, sometimes in exchange for a fee.

“Liquid wallets will be impacted, and we’re sorry for any inconvenience,” Liquid Network wrote, adding it has halted all new transactions.

“Federation members are actively…