Yep - backups are your best friend. Almost 25 years' worth of stuff, and you bet your sweet {insert beast of burden here} that I have multiple backups, all of which run by Task Scheduler and/or cronjob - to external drives, and to external servers (I have an Intel NUC on my home network, rigged with a couple of very fat USB3 hard drives that pulls backups from critical network shared folders on our devices every night - the NUC and drives are in a ventilated box. In an emergency, I can grab the box and go, and have all my stuff. The time delay is in case someone's laptop gets compromised by malware, then I can disconnect the NUC and keep the data safe.)

Yep - after a couple of very close calls over the years, I'm kinda paranoid about that sort of thing.