Seychelles cryptocurrency exchange HTX (formerly Huobi) lost $7.9 million in ETH to a hacker, blockchain data shows. The exchange has already identified the culprit and is demanding a refund with the threat of legal proceedings. Tron founder and Huobi advisor Justin Sun confirmed that all losses have already been covered by the exchange, and all related problems have been resolved. HTX provided the hacker with an address to return all funds, offering a 5% white hat bonus and setting a deadline of one week.