Peeling Back the 7 Layers of Data Security

When it comes to cybersecurity and data protection support, think of your defences as an onion. Not because they’ll make you cry, but because security works best in layers. Peel away one, and there’s another waiting. Let’s break down the seven layers and how you can strengthen each one.

1. Physical Security: The Outer Skin

Keep your server rooms, offices, and storage areas locked and monitored.
Tip: Use access cards, CCTV, and visitor logs to stop unauthorised entry before it even starts.

2. Perimeter Security: The Next Layer In

This is your fence in the digital world. Firewalls and intrusion detection keep threats at bay.
Tip: Regularly update firewall rules and review who has remote access.

3. Network Security: The Onion’s Core Traffic System

Protect how your data travels. Encryption and network segmentation stop attackers from moving freely.
Tip: Use VPNs for staff working offsite and monitor for unusual network activity.

4. Application Security: Where Software Gets Saucy

Apps are common attack points. Secure coding and updates keep the bad stuff out.
Tip: Patch software promptly and run vulnerability scans on your web apps, even better if you can undertake a manual penetration test.

5. Endpoint Security: Guard Every Device

Laptops, mobiles, and IoT devices are doors to your data.
Tip: Install endpoint protection, enforce strong passwords, and enable remote wipe for lost devices.

6. Data Security: Protecting the Treasure

Even if an attacker gets in, your data should be unreadable.
Tip: Encrypt sensitive files, classify data, and back it up securely offsite.

7. The Human Layer: The Core We Often Forget

People can be your strongest defence or your weakest link.
Tip: Run regular staff training on phishing, password hygiene, and incident reporting.

Learn more about our Data Protection and Cybersecurity Services and how we support UK organisations with GRC implementation.

If you would like to learn more about how GRC Hub can support your Data Protection and Cybersecurity programme with our specialist GRC, GDPR and Cybersecurity support services, please contact us at hello@grc-hub.co.uk or by phone on 0113 532 7830.