Microsoft is changing some of its licensing rules, which are already complex. Here’s what small businesses should know.

Microsoft Exchange is a wildly popular threat target, with dangers exacerbated by the tech giant's end support for Exchange 2016 and 2019 last month. Now those email servers won't receive necessary, ...

The NSA, CISA, Australia's Cyber Security Centre, and Canada's Cyber Centre jointly released comprehensive security practices for Exchange hardening. Image: Envato If your team still runs Microsoft ...

Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. Thankfully, for such things, the document itself is relatively ...

If when you log into your Windows 11 or Windows 10 computer, and you fire up Outlook but you notice the email client is disconnected from the server, consequently preventing you from sending or ...

More than 29,000 Microsoft Exchange servers exposed to the internet have remained unpatched against a high-severity vulnerability that could allow attackers to seize control of entire domains in ...

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 Exchange customers have been warned about a new high-severity vulnerability, which could allow an attacker to escalate privileges within an organization’s connected cloud environment. The ...

Microsoft this week announced it will be bringing its Extended Security Update (ESU) program for on-premises Exchange Server 2016 and 2019, offering organizations critical protection as they approach ...

Enterprises must soon have subscription licenses for all on prem users and servers. The shift comes with a significant price increase. If you’re an enterprise still hosting on-premises Exchange 2016 ...