Backups run quietly in the background, which is exactly what makes them easy to trust without ever checking. Most people assume theirs works. Fewer people have actually confirmed it.
What "untested" actually means
A backup can fail silently for all sorts of reasons: a subscription that lapsed, a drive that filled up months ago, a setting that got switched off during an update nobody noticed. None of these show up until the day you actually need to restore something, which is the worst possible time to discover a problem.
An untested backup isn't a safety net. It's a guess dressed up as one.
The five-minute test
Pick one file, ideally one you don't mind losing if something's gone wrong, and try restoring it from the backup right now. If it comes back intact, you've confirmed something worth knowing. If it doesn't, you've found a problem while it's still cheap to fix.
Worth doing on a schedule
Once isn't enough, settings change, storage fills up, devices get replaced. A backup test every few months, on a date you'll actually remember, is a small habit that prevents a genuinely bad day.
Part of every audit
Whether a restore has actually been tested, not just assumed to work, is one of the first things checked in a Sfinco SMB Cyber Audit. See how it works.