The NSA, CISA, Australia’s Cyber Security Centre, and Canada’s Cyber Centre jointly released comprehensive security practices for Exchange hardening. If your team still runs Microsoft Exchange Server, ...
A newly discovered zero-day vulnerability in Microsoft Exchange Server has experts declaring an emergency and urging CSOs to think about the need to abandon on-premises email solutions. “Because it’s ...
Update, August 10, 2025: This story, originally published on August 7, has been updated with additional information following a demonstration of the shared service principal exploit at the Black Hat ...
Microsoft is working to fix a DNS misconfiguration that is causing one-time passcode (OTP) message delivery failures in Exchange Online for some users. Recipients may receive a single-use access code ...
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