MEDIUMVulnerability
Global

Microsoft Exchange Flaw Lets Attackers Spoof Any Email Address

·Source: Dark Reading

Updated:

Executive Summary

"Ghost-Sender" uses Exchange Online or on-premises in hybrid mode with a third-party mail server or spam filter to achieve this level of spoofing.

Analysis

"Ghost-Sender" uses Exchange Online or on-premises in hybrid mode with a third-party mail server or spam filter to achieve this level of spoofing.
Source Attribution

Originally published by Dark Reading on Jun 9, 2026.

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