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Backup Strategy
Purpose: make sure your critical data survives device failure, ransomware, theft, and power outages.
Do This First (Today)
- Identify critical folders: IDs, finance, medical, contacts, project files.
- Create two local backup copies on separate drives.
- Create one off-site or disconnected copy.
- Run a restore test on one file before calling it done.
Tools and Materials
- Two external SSD/HDD drives (at least 2x current data size)
- One encrypted USB for quick grab emergency docs
- Password manager and recovery code printout
- Checksum tool (hash verify)
- Backup log sheet with dates and results
Use the 3-2-1 Rule
- 3 copies total: original + 2 backups
- 2 media types: internal drive + external drive/NAS
- 1 off-site or offline: location separate from home system
For ransomware resistance, keep one backup physically disconnected except during backup windows.
Backup Schedule Table
| Data Type | Backup Frequency | Retention | Restore Test |
|---|
| Critical docs | Daily | 90 days | Weekly |
| Photos/media | Weekly | 12 months | Monthly |
| System image | Monthly | 3 versions | Quarterly |
| Password vault export (encrypted) | Monthly | 6 versions | Quarterly |
Decision Table for Failures
| If this happens | Do this now | Backup action | Verify |
|---|
| Main drive dies | Stop writes and clone if possible | Restore from latest verified copy | File integrity checks pass |
| Ransomware alert | Disconnect network immediately | Wipe + restore from offline backup | No encrypted files remain |
| Backup drive fails | Replace drive same day | Seed from second backup copy | New drive full sync completed |
| Site disaster/theft | Use off-site copy | Recover from encrypted cloud archive | Critical docs available in 4 hours |
Common Mistakes and Fixes
- Mistake: backup never tested. Fix: restore one file weekly.
- Mistake: single external drive only. Fix: add second independent target.
- Mistake: all backups always connected. Fix: rotate one disconnected copy.
- Mistake: no version history. Fix: keep multiple dated snapshots.
- Mistake: no encryption on portable drives. Fix: full-disk encryption + strong passphrase.
Scenario Drills
Drill 1: Drive Failure Recovery
- Pretend primary drive is dead.
- Restore 10 critical files to a spare folder.
- Measure recovery time.
- Goal: recover essentials in under 30 minutes.
Drill 2: Ransomware Weekend
- Simulate lockout of workstation.
- Execute isolate → wipe → restore flow.
- Verify last clean backup date and data loss window.
- Goal: full recovery under 2 hours, data loss under 24 hours.
Printable Backup Checklist
- [ ] Critical folders inventory updated
- [ ] 3-2-1 coverage confirmed
- [ ] One backup copy offline/disconnected
- [ ] Latest backup log recorded
- [ ] Restore test completed this week
- [ ] Backup media encrypted
- [ ] Off-site copy refreshed this month
Safety note: if a device looks infected, do not connect backup drives. Isolate first, investigate second.
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