An unidentified hacker liquidated 4,190 ETH, incurring a loss of $264,000, according to on-chain analyst @ai_9684xtpa. The hacker, who received the funds on March 28th, sold the ETH at an average price of $3,840.47, below the cost of $3,903.68. This transaction contributed to a total loss of $3.511 million in ETH trading from October 13th to October 18th, with cumulative losses reaching $8.88 million for the month.