What is Behavior:Win32/Hive.ZY? Microsoft has released a virus signature update that misidentified Google Chrome, Microsoft Edge and other browsers based on the Chromium engine, as well as Discord, WhatsApp and other applications based on Electron as “Behavior:Win32/Hive.ZY”. This problem was first noticed on Sunday morning after Microsoft made available the 1.373.1508.0 signature update, which among