The National Cyber Security Center (NCSC) is encouraging all UK organizations to install the latest Microsoft Exchange Server updates as a matter of urgency. The urgent advisement comes after ...

Due to the critical nature of recently issued Microsoft Exchange security updates, admins need to know that the updates may have installation issues on servers where User Account Control (UAC) is ...

The latest Patch Tuesday security update from Microsoft rolled out August 8, complete with six critical reasons to install it as soon as possible. When it came to certain Exchange Server admins, ...

Microsoft has released emergency out-of-band security updates for all supported Microsoft Exchange versions that fix four zero-day vulnerabilities actively exploited in targeted attacks. These four ...

If you are still running and patching an on-premises Exchange server, you need to opt into a major protection that Microsoft is rolling out to its customers. Microsoft has rolled out a new feature ...

Update 26.3.2024: While not on the same scale as 2021's Microsoft Exchange Server hack (see below this update), security problems impacting Exchange Server have reemerged. In March 2024's monthly ...

Microsoft will disable OWA Light by default in the August 2026 Exchange Server update, redirecting users to standard Outlook ...

Microsoft’s monthly update included 206 fixes for flaws in everything from Windows to Office to Exchange Server, not to mention three zero-days.