Topic: #vulnerability
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1,082 BTC stolen from Coldcard wallets via weak seed generation
Galaxy Research mapped a 41-minute attack on July 30 that drained 1,082.65 BTC from 1,196 Coldcard wallets by exploiting weak seed generation. The attacker never accessed the devices themselves—instead, they recreated private keys offline by brute-forcing roughly four billion possibilities.
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Ill Bloom Vulnerability Drains $5M From Thousands of Crypto Wallets
Coinspect identified a critical vulnerability affecting thousands of wallets across Bitcoin, Ethereum, Polygon, and other chains. The "Ill Bloom" exploit stems from weak recovery phrase generation in certain software wallets, with at least $5 million drained since May 27.
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Security researcher recovers $2M in locked ETH from nine-year-old HongCoin bug
A white-hat security researcher discovered and fixed an integer-overflow vulnerability in the HongCoin ICO smart contract, recovering approximately $2 million worth of ETH that had been trapped since the 2016 token sale failed to reach its funding goal.