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Hidden business risk in legacy systems

Could one old system stop your business trading?

Background

A lot of SMEs have systems that “just work” — until they don't. The danger is rarely visible because the business has grown around them. Unsupported operating systems are a common pattern: Windows Server 2012 R2 is fully out of support, and Server 2016 is approaching end of extended support in October 2027. An unpatched server is a ticking clock.

Questions to ask yourself

  • Is any one server, database, spreadsheet, person, or supplier a single point of failure?
  • Are important systems all sitting on the same machine?
  • Could one mistake, cyberattack, or hardware failure stop production?
  • Are we relying on technology that should have been replaced years ago?

What you can do today

Find “one system, no fallback” risks

Three quick actions.

  • 01Walk the office. Find the “if this PC dies, we stop” machine. Photograph the serial-number sticker.
  • 02List the five systems you'd notice in under an hour if they went down. Next to each: when was it last patched?
  • 03Check the operating system on your most critical server. Windows Server 2012 R2 is already out of support; Server 2016's extended support ends October 2027. Plan now.
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