Devices and protection
When software stops getting security updates
Software does not wear out, so it is tempting to keep using it as long as it runs. The problem is what happens after its maker stops fixing it.
1 min readExplainer
The short version
Every operating system and device eventually stops getting security fixes. Running it after that date leaves known holes open for good.
What end of support means
Every operating system, server, firewall and business application has a support end date. After it, the maker no longer releases security fixes. New flaws keep being found, and attackers keep using them, but they are never closed.
For example, Microsoft ended support for Windows 10 on October 14, 2025. Computers still running it no longer receive regular security updates unless the business pays for an extended update program.
Why it matters
- Attackers look for it. Unsupported systems are easy targets, because every published flaw stays open.
- Other software stops working with it. New versions of business applications stop supporting old systems.
- Insurers and partners ask. Unsupported systems are increasingly a problem in contracts and questionnaires.
What to do
- Make a list of computers, servers, firewalls and key applications, with the support end date for each.
- Plan replacements ahead and budget for them, ideally a year or more in advance.
- If something cannot be replaced yet, keep it separate from the rest of the network, limit who can reach it and plan its replacement.
Talk to us about your technology
Tell us what you run today and what is getting in the way. We will get back to you about how we can help.