Data management
None of this is expert advice. It's what people worked out for themselves, usually the hard way — what actually helped, and what they'd tell someone standing where you are. Take what fits and leave the rest.
If you only read a few
Follow the 3-2-1 backup rule: keep three copies of your data on two different types of media, with one copy stored offline or offsite.
Your data doesn't exist until it's backed up; it isn't backed up until there are two backups; it doesn't have two backups until one is off site.
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- Adopt the mindset that one copy is no backup and two copies are one; always back up your backups.2
Store one backup copy offsite, such as at a trusted family member's or friend's house, to protect against local disasters like fire or flood.
If your computer is destroyed locally, the data remains safe elsewhere.
- Ensure proper security at the offsite location.
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- Keep one offline backup at a friend's house.1
Back up your phone data, not just your computer.
Phones have data too.
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Create separate backups of your backup files to prevent total loss from secondary failures.
Personal experience shows that relying on a single backup system can fail silently or suffer hardware issues like SD card failure.
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Back up cloud storage data to local devices like USB drives.
Cloud uploads can fail without notice, leading to lost work.
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- Store all files on a cloud service and keep a daily local backup on your computer.1
Fully back up your smartphone before traveling.
There is a significant risk of theft or damage while away from home.
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Recognize that online backups require decent upload speed; if you have slow speeds like 0.5 Mbps, you cannot easily upload system backups on demand.
Low upload speeds prevent convenient system backup uploads.
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Rename external hard drives or USBs with your email address to help with return if lost.
It requires almost no effort for someone to find you if the drive is recovered.
- Alternatively, use a sticker.
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Periodically test your backups by attempting to restore data to ensure the files are intact and not corrupted.
A backup is useless if you cannot restore it, and failures may go unnoticed until needed.
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Do not rely solely on cloud backups; keep a primary physical hard disk backup in your possession.
If web accounts are compromised, cloud-only backups leave you without data.
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Rename files with today's date each day you work on them and store old drafts in a subfolder.
This preserves older versions when newer ones are overwritten by mistakes or corruption.
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- Implement simple version control and autosync for files to avoid confusion over naming conventions and dates.1
Download all your data from third-party services every year to protect against service shutdowns.
There is always the risk that a service will shut down unexpectedly.
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Encrypt offline backup drives.
This ensures privacy if the disk is stolen or if the friend's honesty is questionable.
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Ensure you don't lose anything by combining daily automatic backups to an external device (like a NAS) with less frequent off-site cloud backups.
Having only a restore point is not enough to ensure you don't lose anything.
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Keep older versions of backups in addition to the current one.
Issues affecting the current system may also corrupt the latest backup.
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Use non-Google services for backups if you are concerned about privacy and surveillance.
Google is perceived to track location, calls, history, and contacts.
- This is a personal opinion regarding privacy concerns.
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Keep essential files on a USB drive attached to your keyring for offline access when the internet is unavailable.
You always carry your keys, ensuring access even without network connectivity.
- There is a risk of accidentally leaving the drive behind in public computers.
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Encrypt data before uploading to cloud storage if you are concerned about privacy or unauthorized scanning.
Cloud providers may scan data or use it in unknown ways unless it is encrypted.
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Make saving work a reflexive habit to prevent loss from crashes.
It saves pain later by protecting current projects.
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Automatically back up important documents that do not contain sensitive information using cloud services like OneDrive, Google Drive, or Dropbox.
This approach has saved users from losing school documents multiple times.
- Do not use this for documents containing sensitive information.
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Back up encrypted data offsite or to the cloud.
This ensures access during crises when consumer devices may be unavailable.
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Keep your operating system installation totally separate from your data partition.
You can delete and reinstall the OS without losing any data.
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Update websites where you registered with your school email address, as changing emails may require security confirmation from the original address.
If the original email is no longer accessible, you may be locked out of accounts.
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Back up files from school-issued laptops to your personal computer before returning the device at graduation.
The files may be useful for portfolios, information sources, or personal memories.
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Maintain renter's insurance to cover the cost of replacing stolen electronics.
Insurance pays for hardware replacement but cannot recover lost digital files like photos.
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Avoid using work laptops for personal activities.
You likely have no privacy as the company may monitor activity, and it could expose the company to liability.
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Change bank passwords immediately if unauthorized access is suspected.
To protect against unauthorized account access and prevent reputational damage to the employer.
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