Electrum Wallet Attack Hid Bitcoin Theft Behind a Fee Increase

Attackers exploited Electrum wallet software by presenting users with fraudulent update prompts that led to malicious servers and theft of Bitcoin. The scheme obscured the theft by altering transaction fees, making the suspicious activity appear to be a fee increase rather than a change in the intended recipient. The incident underscores the risks of using outdated wallet versions and accepting update prompts or transaction details without independent verification.