Attackers are quietly abusing Microsoft 365 mailbox rules to steal emails, hide alerts, and maintain long-term access without installing malware. These stealthy tactics are increasingly common in business email compromise (BEC) campaigns targeting enterprise users worldwide. After gaining initial access often through phishing, password spraying, or compromised OAuth tokens attackers focus on persistence and stealth. […]

The post Hackers Exploit Hidden Microsoft 365 Mailbox Rules to Steal Sensitive Business Emails appeared first on GBHackers Security | #1 Globally Trusted Cyber Security News Platform.

Mayura Kathir

Source: gbHackers
Source Link: https://gbhackers.com/microsoft-365-mailbox/