What is Microsoft Exchange Microsoft Exchange is an email service offered by Microsoft that's most often used by businesses and academic institutions. It's a highly scalable solution that can support ...

Microsoft sounded the alarm on a hybrid Exchange bug in early August 2025 However almost 30,000 instances remain vulnerable ...

Improper authentication bug found in Microsoft Exchange hybrid environments that could grant threat actors lateral movement across the network.

Microsoft Defender Antivirus has been updated so that it automatically mitigates CVE-2021-26855 on vulnerable Exchange servers.

Microsoft has released its final cumulative update (CU) for Exchange Server 2019, which means customers need to get ready to upgrade or move to hosted Exchange.

Microsoft on Thursday cleared up the mystery surrounding its next Exchange Server release plans, as described in an 'Exchange Server Roadmap Update' announcement.

Microsoft has shared mitigations for two new Microsoft Exchange zero-day vulnerabilities tracked as CVE-2022-41040 and CVE-2022-41082, but researchers warn that the mitigation for on-premise ...

Microsoft on Thursday published a comprehensive description of the Exchange Server attack methods currently taking advantage of four zero-day flaws in those products, and offered extensive advice.