According to Blockaid monitoring, the Alephium TokenBridge on Ethereum was subjected to a hacker attack. Due to 3 out of 4 guardian keys being leaked, the attacker stole assets worth approximately $815k within about 7 minutes by signing forged VAAs. During this process, the hacker minted 13.76 million wrapped ALPH out of thin air and never unlocked the frozen USDT, USDC, WBTC, and WETH from the custodial contract. This incident was not due to a smart contract vulnerability but was caused by key leakage. Currently, the hacker's address still holds the stolen assets worth about $815k and the 13.76 million uncollateralized wrapped ALPH.

ETH-0.33%
ALPH-3.71%
WBTC-0.7%
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