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 ...

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 ...

Parts of the federal enterprise are likely susceptible to the flaw that allows hackers to hijack on-premises versions of Active Directory. CISA plans to release an emergency directive on Thursday, ...

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 ...

Microsoft experienced a significant service disruption across its Microsoft 365 services on Monday, affecting core applications including Microsoft Teams and Exchange Online. The outage left users ...

In context: The "thin client" concept is almost as old as computing itself, dating back to the first terminals used to access mainframe computers in early multi-user systems. Today, thin clients are ...