Published 16 June 2026 · Business IT · by the 365 Techies team — Microsoft Partners & Dell specialists, looking after Dorset since 1995
Business email accounts hold the keys to everything, which is why securing them is the single most valuable thing most businesses can do.
Start with the fundamentals
Turn on multi-factor authentication for every account, use strong unique passwords, and switch on the phishing and spam protection built into Microsoft 365.
Watch for impersonation
Many attacks pretend to be the boss or a supplier asking for payment or details. Train staff to verify unusual requests, and consider rules that flag external or spoofed messages.
Key points
- Enable multi-factor authentication everywhere
- Use strong, unique passwords
- Switch on Microsoft 365 phishing protection
- Verify unusual payment or detail requests
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