Why Backups Matter
Your computer could fail tomorrow. A cup of coffee could spill on your laptop. Ransomware could lock your files. A phone could slip out of your pocket and into a lake. These things happen, and when they do, the only thing that stands between you and losing everything is a backup.
A backup is simply a copy of your important files stored in a separate location. If something happens to the original, you can restore from the copy and carry on.
The 3-2-1 Backup Rule
Security experts recommend the 3-2-1 rule as a reliable backup strategy:
- 3 copies of your data (the original plus two backups)
- 2 different types of storage (for example, your computer's hard drive and an external drive)
- 1 copy off-site (such as a cloud backup, so if something happens to your home, your data is safe elsewhere)
This may sound like a lot, but it is easier to set up than you might think, and much of it can be automated.
Cloud vs. Local Backups
You have two main options for where to store your backups:
- Cloud backups: Your files are uploaded to secure servers over the internet. This is great for off-site protection and access from anywhere. Many services offer automatic, continuous backups so you do not have to think about it.
- Local backups: Your files are copied to an external hard drive, USB drive, or network storage device at your home. This is fast and does not require an internet connection, but it will not protect you if the drive is damaged or stolen.
The best approach is to use both. Cloud backup handles the off-site requirement, while a local backup gives you fast access to large files.
Automating Your Backups
The biggest mistake people make with backups is forgetting to do them. Automation solves this problem:
- Most operating systems have built-in backup tools that can run on a schedule. Windows has File History, and macOS has Time Machine.
- Cloud backup services typically run continuously in the background, backing up new and changed files automatically.
- Set a reminder to plug in your external drive once a week if you use local backups.
Test Your Backups
A backup is only useful if it actually works. Every few months, try restoring a file from your backup to make sure the process works smoothly. There is nothing worse than discovering your backup is corrupted or incomplete when you need it most.
What to Prioritize
You may not need to back up everything. Focus on files that would be difficult or impossible to replace:
- Family photos and videos
- Important documents (tax records, contracts, medical records)
- Work projects and school assignments
- Personal notes and journals
Applications and operating systems can usually be reinstalled, so they are lower priority.
Setting up backups takes a small amount of effort upfront, but it provides enormous peace of mind. When something goes wrong, and eventually it will, you will be glad you took the time.
