Alex Lab suspects North Korean hackers linked to a $4 million exploit on their Bitcoin DeFi protocol.
Hackers exploited Alex Lab’s BNB Smart Chain bridge, stealing funds and laundering STX tokens through exchanges.
Bitcoin layer-2 developer Alex Lab, which was affected by a $4 million hack in May, has revealed suspicions that the notorious North Korean hacking group Lazarus may be behind the exploit. Today, Alex Lab identified three wallet addresses used by the attackers to siphon funds from their decentralized finance (DeFi) protocol on May 16.
The breach specifically targeted Alex Lab’s bridge on the BNB Smart Chain, resulting in the theft of $4.3 million. An additional $13.7 million worth of Stacks (STX) tokens were also stolen and subsequently laundered through various centralized exchanges. By June 20, Alex Lab reported that the hackers had conducted over 11,800 transactions involving staking tokens of STX.
Alex Lab, collaborating with independent blockchain investigator ZachXBT, traced the stolen assets to three specific wallets. The initial breach directly linked one key wallet, identified as 0x418e…0c4e. The team clarified that the hackers accessed private keys but confirmed that the Alex Protocol’s smart contracts remained secure.
Despite the findings, Alex Lab is offering a 10% bounty for the return of 90% of the stolen funds. Also, they promised to cease legal action, but the attackers have not responded to Alex Lab’s proposal.
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