3‑2‑1 Backups for Singapore Accounting Files: A Simple Plan
- Agnes Lee
- Sep 29, 2025
- 1 min read
A simple, reliable way to protect your accounting data (ABSS/MYOB or SQL Account) against mistakes, hardware failure, and ransomware. No jargon—just do this and you’ll sleep better.
What “3‑2‑1” Means (30 seconds)
3 copies of your data (1 live + 2 backups)
2 different media (e.g., computer + external drive)
1 off‑site copy (e.g., cloud drive)
That’s it. If one layer fails, the others save your day.
The Easiest Setup (Recommended for SMEs)
Copy A — Local daily
Folder: C:\Accounting\Backups
Naming: Company_YYYYMMDD.abk (ABSS) or Company_YYYYMMDD.bak/zip (SQL Account)
Copy B — External drive rotation (Mon/Thu)
Two USB drives labelled Drive 1 (Mon) and Drive 2 (Thu)
Keep the one not in use off‑site (home or safe)
Copy C — Cloud sync (continuous)
OneDrive / Google Drive / Dropbox
Sync only the Backups folder (not the live data file)
If you’re on SQL cloud hosting, still keep App‑level backups (Copy A) inside the server and download a weekly copy to your office PC or off‑site.
Ransomware‑Smart Habits
Don’t keep the only backup plugged in—rotate USBs.
Use version history in your cloud drive so you can roll back a bad/corrupted file.
Back up forms/templates and any custom reports with the data.
Quarterly “Fire Drill” (15–30 mins)
Take last Friday’s backup
Restore on a spare PC/VM
Open and run: Trial Balance, Aged AR, Aged AP, GST Detail
Log results in a simple sheet: date, file name, pass/fail, who tested
Quick Recap
3‑2‑1 = 3 copies, 2 media, 1 off‑site
Rotate USBs, enable cloud versioning, test restores quarterly
Need a Hand?
Using ABSS/MYOB or SQL Account?




