Family photos, administrative documents, work files: all of it sits on a drive that can fail at any time. Hardware failure, ransomware or theft, and without backup, the loss is final.
What you can do yourself
Regularly copying files to an external drive is already better than nothing. Windows includes File History, macOS has Time Machine: both are free and effective when properly configured.
When it goes beyond that
Automatic backup no longer works, external drive not recognized, deleted files need recovery, or you need a strategy for several devices.
File History or Windows Backup setup, backup to external drive and/or cloud, and integrity checks on existing backups.
Time Machine setup, backup drive choice, iCloud exclusions check and a 3-2-1 strategy for critical files.
Real case
Individual in Pont-Saint-Esprit with 12 years of family photos on one internal hard drive. No backup. Time Machine set up on an external drive and selective iCloud sync configured and tested in one visit.
We put a solution in place that works without you having to think about it.