Security
Electrum wallet security flaw is fixed after a user loses money in fee attack
The Cryptonomist·October 24, 2026·1 min read
Electrum released version 4.8.3 on October 24, 2026, to fix a security flaw that lets malicious servers trick users into signing payments to attackers when increasing transaction fees. Developers received two user reports, including one involving lost money, and urged everyone to upgrade. Versions earlier than 4.8.3 are vulnerable.
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