Cybercriminals have found a quiet way to sit inside a corporate email account and read everything being sent and received — without the account owner ever knowing. Attackers are now abusing a built-in Microsoft 365 feature called mailbox rules to silently intercept business emails, redirect financial communications, and suppress security notifications, all while staying completely […] The post Hackers Create Hidden Mailbox Rules in Microsoft 365 to Intercept Sensitive Business Emails appeared first on Cyber Security News.