Nerd Cave
It comes up every time someone loses a laptop, gets hit with ransomware, or just fat-fingers a delete on the wrong folder. "I thought I had a backup." Here are the five most common ways that turns out not to be true, and what to do instead.
1. Thinking cloud sync is a backup — it isn't, it's a mirror. Dropbox, OneDrive, Google Drive — these sync your files, they don't protect them. Delete a file by accident and it deletes in the cloud too. Get hit with ransomware and it happily syncs the encrypted, unreadable version right over your good copy. Sync is convenient. It is not a backup.
2. Keeping the backup drive plugged in all the time — so does the ransomware. I still see external drives sitting connected to the computer 24/7, "just in case." Just in case of what? A power surge takes out both drives at once. Ransomware encrypts anything it can reach, including that drive. A real backup needs to be disconnected, or somewhere the malware can't touch it.
3. Never testing the restore — an unverified backup is a guess, not a backup. Plenty of people back up faithfully for years and never once try to actually get a file back out. Then the day comes, and the backup is corrupted, or it's backing up the wrong folder, or it silently stopped six months ago. Test it. Restore one file, right now, and confirm it opens.
4. Backing up the computer and forgetting the phone. The laptop gets a nightly backup. Meanwhile five years of family photos live only on a phone that's one dropped-in-a-lake accident away from gone. If it would hurt to lose, it needs a backup — regardless of what kind of screen it's on.
5. Thinking one copy, one time, is enough. A single backup on a single drive, made once, is one bad afternoon away from being useless — the drive fails, the house floods, the laptop and its backup get stolen from the same bag. You want the 3-2-1 rule: three copies of your data, on two different types of media, with one of them offsite.
The fix: automate it so you don't have to remember.
Backblaze — runs quietly in the background, keeps a copy offsite, and costs less than a coffee a month. Set it up once, then forget about it — until the day you need it, when you'll be very glad you did. https://www.backblaze.com/cloud-backup/business/landing/ad/use-cases/branded-cloudbackup-v1
IDrive — probably the best all-around pick if someone wants to back up more than one device (multiple PCs, phone, tablet) under a single plan. Slightly more setup than Backblaze but more flexible. https://www.idrive.com/
Carbonite — a name a lot of non-technical readers will already recognize from ads, which can actually help credibility. Solid unlimited-storage consumer plans, though pricing runs a bit higher than Backblaze. https://www.carbonite.com/