Bitcoin Wallet Bug Allowed Rogue Servers to Steal Funds During Transaction Speed-Ups
Key Highlights: Attackers targeted Electrum wallet users by exploiting Bitcoin’s Replace-by-Fee (RBF) feature via malicious Electrum servers. Fraudsters displayed zero-fee or stuck unconfirmed transactions with vanity addresses matching the legitimate destination’s last four characters, tricking users into signing replacements that routed funds to the attacker. Electrum developers released version 4.8.3 on October 24 to introduce ...