A significant part of the $573,500 that was stolen from the multichain token bridge Allbridge has been returned after the exploiter accepted the project’s offer of a white hat bounty and no legal reprisal.
On April 3, Allbridge tweeted that it had received a message from a user who returned 1,500 BNB, worth around $465,000.
“The remaining funds will be considered a white hat bounty to this person,” Allbridge said.
It was explained that all “received BNB” was converted to Binance USD, a stablecoin, and utilized as compensation.
The blockchain security startup Peckshield was the first to identify the April 1 hack, tweeting to Allbridge that the BNB Chain pools swap price was being manipulated by a liquidity provider and swapper.
Following the exploit, Allbridge offered the attacker a reward and the opportunity to avoid legal repercussions.
Allbridge has not yet disclosed how much was taken, however, blockchain security firm CertiK estimates the amount to be close to $550,000, and PeckSheild estimates the exploit netted $282,889 in Bitcoin BUSD and $290,000 in Tether USDT, for a total of approximately $573,000.
Allbridge also disclosed that a second address utilized the same vulnerability and provided a link to a wallet containing 0.97 BNB, presently worth approximately $300.
“We ask the second exploiter to reach out and discuss the return,” Allbridge said.
Following the initial intrusion, Allbridge made it known that they were hot on the trail of the stolen funds and were collaborating with a vast array of organizations to recover the treasure.
BNB Chain was among those who responded to the call to arms, tweeting on April 2 that it had identified at least one of the perpetrators through on-chain analysis.
According to BNB Chain, it is “actively aiding the Allbridge team on the fund recovery” and praised AvengerDAO for its recovery efforts.