Security experts from Skyhigh Networks discovered a wide-scale attack with a new stealthy technique, dubbed KnockKnock, that targets Office 365 accounts. The cloud access security broker Skyhigh Networks discovered a wide-scale attack with a new stealthy technique, dubbed KnockKnock, that targets Office 365 (O365) accounts. The massive campaign leverages a low-key attack, started in May and is […]