On August 10, one of the DeFi's largest hacks ever took place which resulted in stealing around $613 M from the cross-chain protocol Poly Network.
The attacker answered via Ether transaction note, voicing their intention to send back altcoins. Today, Poly revealed the return of $342 M.
$342 million (As of 12 Aug 08:18:29 AM +UTC) of assets had been returned:— Poly Network (@PolyNetwork2) August 12, 2021
The remaining is $268M on Ethereum
Before the return, blockchain security ecosystem firm SlowMist said that it has detected the attacker's email box, internet protocol address, and device fingerprints. The names weren't mentioned.
The Poly Network runs on BSC, Ethereum, and Polygon. The team said that after investigation, they discovered that there was a vulnerable point between smart contract calls. Through the flaw, the attackers were able to modify the contract orders for each of the three chains and directed the amount to 3 wallet addresses. There were over 12 coins and tokens stolen, among them Eth, Wrapped Bitcoin, UNI, DAI.
The hack has raised various discussions. Some think it was a white hack initially, while others are sure that the fund return is connected with SlowMist's achieved ID information.