How to secure your Microsoft Exchange server
Posted: 12th Mar 2026
When in late 2025, the Cybersecurity & Infrastructure Security Agency (CISA) and the National Security Agency (NSA), in collaboration with international cybersecurity partners, created a best practice guide for Microsoft Exchange server security, an ever-so-relevant question arose: Why now?
Because Exchange servers are used widely and are persistently being threatened, the guide says. Sure, but so are endpoints in general.
OK, then what about Exchange’s end-of-life (EOL) versions being at a heightened risk of compromise? Like any other EOL product, you mean?
It’s always a good idea to proactively mitigate risk! Of course, but isn’t that a widely accepted cybersecurity standard?
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