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, ...

Best practices include a focus on hardening user authentication and access, ensuring strong network encryption, and minimizing application attack surfaces. Cyber agencies from three countries ...

Microsoft says outdated Exchange servers cannot receive new emergency mitigation definitions because an Office Configuration Service certificate type is being deprecated. Emergency mitigations (also ...