Crypto trading platform HTX and cross chain bridge Heco suffered an attack on Wednesday morning (ET) leading to a combined loss of $85 million.

Justin Sun, the Tron founder, and an investor in HTX (formerly called Huobi), confirmed the hack in a post on X (formerly Twitter), adding that HTX had “temporarily suspended” deposits and withdrawals, and that “All Funds in HTX Are Secure.”

“We are investigating the specific reasons for the hacker attack,” Sun wrote. “Once we complete the investigation and identify the cause, we will resume services.”

Onchain data provider Arkham Intelligence is offering a bounty to help identify the person or organization behind the @HTX_Global heco bridge attack.

Onchain analysts Cyvers initially reported $85 million in suspicious transfers early Wednesday. Blockchain security firms Peckshield and CertiK also noted these suspicious movements, which first involved 10,145 ETH, but later included LINK and other tokens.

Cyvers said in a separate post that three hot wallets “belonging to HTX had been impacted by today’s incident.” HTX had also suffered an exploit in October that led to the loss of about 600 ether, roughly $8 million. Sun wrote at the time on X that HTX had covered the losses and that funds were safe.