Poloniex hacker sends ETH to Tornado Cash (Towfiqu Barbhuiya/Unsplash)

Poloniex Hacker Sends $3.3M Worth of Ether to Tornado Cash

Summary

A hacker who stole $125 million from Poloniex's hot wallets in November transferred 1,100 ether (ETH), worth about $3.3 million, to sanctioned coin mixer Tornado Cash. The funds were sent in 100 ETH batches after being dormant for 178 days. The hacker also transferred 501 bitcoin (BTC), valued at $32 million, to an unidentified wallet on April 30. The hacker still possesses $181 million in crypto across various blockchains. Tornado Cash is a protocol that enables users to obscure crypto tokens by mixing assets across multiple wallets over an extended period. It was sanctioned by the U.S. Treasury Department in 2022 after being used by North Korean hacking group Lazarus to hide funds from the $625 million Axie Infinity exploit. The Lazarus Group also used Tornado Cash to launder $12 million from the Heco Bridge hack, which happened shortly after the Poloniex Hack.