The CIA Triad
What Is the CIA Triad?
The CIA Triad is how security experts think about protecting business data. But don't worry, it's actually simple. Every business needs these three things working:
1. Confidentiality
Definition: Only the right people should have access to sensitive business information. That includes things like customer data, pricing, HR files, or financial reports.
Real world example: If someone outside your business can open your invoices, payroll files, or staff records, that's a confidentiality issue.
Quick Fixes:
- ✓ Set passwords on documents and devices
- ✓ Don’t share private info over email or text
- ✓ Use secure apps (like Google Drive or Microsoft 365) for private files
2. Integrity
Definition: Your data should be accurate and trustworthy. No one should be able to change it without permission, whether by accident or on purpose.
Real-world example: If someone changes prices on your website or deletes your booking list, and you didn’t approve it, that’s an integrity problem.
Quick Fixes:
- ✓ Limit editing access to trusted staff only
- ✓ Use tools that track changes (e.g. version history in Google Docs)
- ✓ Back up important data weekly
3. Authentication / Availability
Definition: Your systems and services should be up and running when you (or your customers) need them. This includes your website, email, booking system, or POS.
Real-world example: If your online store crashes on a sale day, or your team can’t access client files during the day, that’s an availability issue.
Quick Fixes:
- ✓ Back up files in the cloud or on an external drive
- ✓ Use tools that send alerts when systems go down
- ✓ Have a simple offline plan for emergencies (e.g. paper bookings)
Explore CIA Triad Scenarios
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Real-World Failure Example
Availability Failure: A Sydney-based wedding photographer lost years of client photos after a hard drive crash. The files weren’t backed up, and recovery was impossible,leading to lost income and upset clients.
Source: Data Recovery Case Study
Simple Fix: They now use cloud storage and an external backup drive to ensure every photo is saved in two places. Setup took under 20 minutes and cost less than $100.