Microsoft has released hotfix updates to address multiple known issues impacting Exchange servers after installing the March 2024 security updates. Although the April 2024 HU is optional, it also adds ...

Microsoft has identified one of the critical vulnerabilities in Exchange Server that the company disclosed in February's Patch Tuesday update as actually being a zero-day threat that attackers are ...

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Microsoft publishes a list of known issues related to the operating system and platforms included each month. There is a significant issue with the current release of Microsoft Exchange Server, which ...

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 ...

Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. Hot on the heels of the NSA publishing a “high-risk of ...