Microsoft 365 Security Basics Most Small Firms Still Miss

Start With Identity

Every Microsoft 365 security conversation should start with identity. If the wrong person can sign in, everything else becomes cleanup. Require MFA for every user, block legacy authentication, separate admin accounts from daily email accounts, and remove stale guest or vendor access.

Email Is Still The Battlefield

For professional firms, most incidents still start with email: a fake invoice, a spoofed vendor, a compromised client account, or a quick favor from what looks like the owner. SPF, DKIM, DMARC, anti-phishing policies, safe links, safe attachments, and mailbox-rule monitoring all matter.

Devices Matter Too

A secure tenant still leaks when company data syncs to unmanaged personal laptops and phones. The goal is not to make work harder. The goal is to know where client data can land, whether devices are encrypted, and how access gets removed when people leave.

What To Check This Week

Review users and admins. Confirm MFA is enforced, not merely enrolled. Inspect forwarding and mailbox rules. Confirm SPF, DKIM, and DMARC alignment. Check which devices are syncing company data.

Where AMP IT Fits

AMP IT helps Charlotte-area professional firms configure Microsoft 365 so it supports the business instead of becoming a silent liability. That includes identity, email security, device access, monitoring, documentation, and support.