Electrum Urges Users to Install 4.8.3 After Critical Security Fix

Electrum has released version 4.8.3 of its Bitcoin wallet to fix a critical security issue and is urging all users to install the update immediately. The release notice identifies the update as a fix for a critical issue but provides no technical description of the vulnerability. Electrum said it would publish more information later. The announcement does not describe the flaw’s scope or say which wallet functions it affects. The notice also addresses a possible Windows Defender warning involving ZXing.dll. Electrum characterized the alert as a false positive and said users can ignore it.