Experts Warn of Office 365 Account Takeover Surge

Experts Warn of Office 365 Account Takeover Surge

Over 1.5 million malicious and spam emails were sent from thousands of compromised Office 365 accounts in just one month thanks to a surge in account takeovers (ATOs), according to Barracuda Networks.





The security vendor yesterday revealed new findings from an analysis of cloud-based email accounts under fire from ATO attempts in March.





It claimed over a quarter (29%) of organizations it monitored had Office 365 accounts compromised by attackers, often via credential stuffing using previously breached ..