Hacker known as "0x17E0" sold 4,958 ETH, valued at $22.13 million, at a price of $4,463 per ETH during a market dip five hours ago. This transaction resulted in a profit of $9.75 million for the hacker. The sale comes amid volatile market conditions, raising questions about whether the hacker will repurchase ETH if prices continue to rise, as has occurred in previous instances.