Bitcoin wallet bug let rogue servers steal funds when users tried to speed up payments
Summary
A software flaw in a bitcoin wallet allowed malicious servers to redirect user funds during transaction speed-up attempts. Attackers substituted valid transfers with fraudulent ones and prompted victims to authorize increased fees. Developers have since issued a patch for the vulnerability after at least one user suffered financial losses.
Attackers replaced legitimate transactions with fake ones, then waited for users to approve higher fees. At least one person lost bitcoin before developers patched the flaw.
Source: Read the full story at CoinDesk: Bitcoin, Ethereum, Crypto News and Price Data
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