Two cryptocurrency platforms linked to high-profile digital entrepreneur Justin Sun were hacked in two exploits that may have stolen an estimated $115 million to date. The targeted projects include the HTX digital currency exchange, formerly known as Huobi, from which hackers drained around $30 million worth of cryptocurrencies, the company said in a statement on Wednesday. So-called blockchain bridge Heco Chain, was also attacked, HTX confirmed. Sun, who is an investor in HTX and linked to the Heco Chain, confirmed the events. A blockchain bridge connects different networks to allow the fast swap and movement of various cryptocurrencies,. These chains have proven to be vulnerable to hacking. Market analytics firm CryptoQuant assesses that a total of $85.4 million worth of cryptocurrency has been stolen from the Heco Chain. It was largely denominated in stablecoin USDT and ether. A large amount of HTX’s native cryptocurrency, HBTC, was also stolen. The price of HBTC was down more than 5% versus 24 hours before, according to data from CoinGecko. CNBC has reached out to HTX for comment on Heco Chain losses.