Crypto exchange Four Dragons says it had suffered a breach of its security system, resulting in ‘significant funds being withdrawn.’Kyrgyzstan-based crypto exchange Four Dragons revealed on its website that it fell victim to a hacker attack on Feb. 22, leading to the loss of an undisclosed amount of crypto, reportedly estimated to be worth around $100 million. While the Bishkek-headquartered crypto exchange did not specify the stolen amount, it acknowledged that the figure is “significant,” reassuring customers that operational activities “continue as normal, despite the loss of some liquidity.” It is unclear how exactly the hackers gained access allegedly to the exchange’s hot wallets.