Inbox Rule Notification Suppression
Detects the creation or modification of inbox rules designed to hide security and MFA notifications by deleting, marking as read, or moving them to hidden folders. This technique is commonly used post-compromise to suppress alerts about rogue device enrollment, sign-ins, or password changes, preventing the victim from discovering an account takeover. It is a frequent Business Email Compromise (BEC) and Account Takeover (ATO) persistence technique.
Cortex XDR
