Binance Reveals Getting Closer to Identify Hacker that Drained $570M
Binance is on the verge of uncovering the hacker(s) behind the $570 million exploit on its cross-chain bridge, BSC Token Hub, earlier this month.
In a recent interview with CNBC’s ‘Squawk Box Europe,’ Binance CEO Changpeng “CZ” Zhao said the firm had received substantial tips from law enforcement authorities to identify the hacker(s) that drained two million BNB tokens.
Binance “Narrowing Down”
A series of attacks on targeting vulnerabilities in cross-chain bridges over the past year. A recent study by Chainalysis revealed that $2 billion worth of crypto had been stolen across 13 cross-chain bridge attacks, mostly in 2022. As a result, CZ said the team is “chasing” the bad actors and is in the process of narrowing down the perpetrator(s).
“We’re still actually chasing … helping [authorities] to chase the bad players, working with law enforcement around the globe. Working with law enforcement is one of the ways that we can try to make the space safe. Actually, in this particular instant, law enforcement gave us some tips on who they think it might be. So we’re actually narrowing down.”
According to the recent update by the exec, the BNB blockchain was able to prevent most of the targeted funds from being taken by the hacker by freezing 80% to 90% of them. He added that the actual loss was “much smaller” while the “vast majority of the funds remain under the control” of Binance.
Cross-Bridge Exploits
Cross-chain bridges essentially facilitate users to port crypto-asses from one chain to another. These provide a popular way to solve issues plaguing multichain scaling. Having said that, the complexity with respect to developing as well as subsequently auditing them, in addition to significant amounts of funds locked in their smart contracts, has lured in fraudulent entities.
Token Terminal’s latest finding suggested that cross-chain bridges account for approximately 50% of exploits in decentralized finance (DeFi), making it the weakest point in the space. The crypto data provider detailed that more than $2.5 billion had been stolen from cross-chain bridges in the past two years.
While cross-chain bridges based on the Cosmos Inter-Blockchain Communications (IBC) protocol has largely managed to avert such attacks, the same cannot be said for those based on Ethereum Virtual Machine blockchains.
In fact, a vast majority of cross-change exploits that have occurred so far transpired on EVM blockchains, such as the Axie Infinity Ronin bridge hack, the Wormhole token bridge hack, and the Nomad bridge hack.
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