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CyberEssentials.AI

Is your software supported?

Check whether an operating system, browser or firewall is still supported by its vendor, and the date its latest security update must be installed by under the 14-day rule.

Try:

How the check works

  • Supported: the release you run must still get security updates from the vendor. Support dates come from endoflife.date and the vendor.
  • Up to date in time: critical and high-risk updates must be installed within 14 days of release. If a newer version came out less than 14 days ago, you are compliant until the deadline shown, provided you install it, and submit your assessment, by then.
  • Apple: every Apple security release is treated as fixing high or critical issues, so a Mac, iPhone or iPad one release behind stays compliant only until 14 days after that release.
  • Windows: Microsoft releases monthly security updates on the second Tuesday of each month. Give the date updates were last installed to check the 14 days.

Data from endoflife.date (MIT licence), Apple security releases, Microsoft, Google and Mozilla release feeds, looked up when you check. If a product is not covered, check the vendor's own support pages. This is guidance, not a marking decision. The same check is available to AI assistants through our MCP server.