Published: 3 March 2026 • Compare The Networks
Business phones carry sensitive data — client information, emails, financial records, and access to company systems. A lost phone can trigger a data breach, GDPR fines, and reputational damage. Here are 12 essential security measures every UK business should implement.
12 Essential Security Tips
1. Enable Device Encryption
iPhones encrypt by default. On Android, check Settings > Security. Encryption makes data unreadable without the passcode.
2. Enforce Strong Passcodes
Require 6-digit PIN or biometric unlock. Use Samsung Knox or Apple Business Manager to enforce remotely.
3. Enable Remote Wipe
Every business phone must be remotely wipeable if lost. Both Knox and Apple Find My support this. Test regularly.
4. Separate Work and Personal Data
For BYOD setups, use work containers (Knox Workspace or Apple Managed Apps) to isolate business data.
5. Keep Software Updated
Enable automatic OS and app updates. Outdated software is the most common attack vector.
6. Use VPN on Public WiFi
Public WiFi is insecure. A business VPN encrypts all traffic. Many MDM solutions include VPN.
7. Control App Installations
Block sideloading and create app whitelists via Knox or ABM. Malicious apps are a major threat.
8. Enable Two-Factor Authentication
Require 2FA on all business accounts: email, CRM, cloud storage. Use authenticator apps over SMS.
9. Implement MDM
For 10+ devices, Mobile Device Management provides centralised control. Knox and ABM are free on their devices.
10. Create a Lost Device Procedure
Report → Remote lock → Remote wipe (if not recovered in 24hrs) → Change all passwords. Practise annually.
11. Disable Auto-Connect
Turn off automatic Bluetooth and WiFi connections. Connect only to known, trusted networks.
12. Regular Security Audits
Quarterly check all devices: encrypted? Updated? Passcode-protected? MDM can automate compliance reports.
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Get Security AdviceQ: Samsung Knox or Apple ABM — which is more secure?
Both are excellent. Knox has more granular controls for regulated industries. ABM is simpler and integrates with the Apple ecosystem. Both are free.
Q: What if an employee’s phone is stolen?
Immediately: remote lock, remote wipe, change all passwords, report to police, assess GDPR breach notification (72-hour deadline).