A stealthy data theft technique in Microsoft 365 that abuses Outlook add-ins to exfiltrate email content without leaving meaningful forensic traces. The technique, dubbed “Exfil Out&Look,” takes advantage of how Outlook Web Access (OWA) handles add-ins and audit logging, creating a blind spot that traditional Microsoft 365 monitoring cannot see. Outlook add-ins are small web-based […]

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Source: gbHackers
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