Microsoft 365 is powerful, but its default settings are not enough on their own. A few key changes dramatically reduce your risk of account compromise and data loss.
1. Enforce multi-factor authentication
MFA is the single most effective control against account takeover. Enable it for every user.
2. Use conditional access policies
Restrict sign-ins by location, device and risk to block suspicious access.
3. Disable legacy authentication
Old protocols bypass MFA. Turning them off closes a common attack path.
4. Protect against phishing
Configure anti-phishing and safe-links policies to catch malicious email.
5. Back up your data
Microsoft 365 is not a backup. Use an independent backup to protect against deletion and ransomware.
6. Review admin access
Limit global admins and use least-privilege roles.
7. Monitor and alert
Turn on auditing and alerts so unusual activity gets noticed fast.
Need help securing Microsoft 365? See our Microsoft 365 services.