Multiple inbox rules created in an Exchange Online mailbox within a short period
Attackers use multiple inbox rules in Exchange Online mailboxes within a short period to evade detection and maintain unauthorized access, indicating high severity.
Detected a malicious inbox rule to conceal email in Exchange Online
A malicious inbox rule in Exchange Online conceals emails, aiding Business Email Compromise attacks, exposing your organization to unauthorized data access and financial losses.
Exchange Online mailbox with SMTP forwarding address
Exchange Online mailbox with an SMTP forwarding address exposes the organization to potential email interception by threat actors.