Email is one of the most common places where small-business security issues start. Microsoft 365 has useful protections, but they need to be reviewed and connected to clear staff habits.
Protect Accounts With MFA
Multi-factor authentication should be enabled for users and especially for admin accounts. Stronger methods such as authenticator apps or number matching are usually better than relying only on text messages.
Review Anti-Phishing And Spam Settings
Microsoft 365 security settings should be checked for spoofing protection, impersonation warnings, attachment handling, and link protection where available. Defaults are not always enough for every business.
Check DNS Records
SPF, DKIM, and DMARC help reduce spoofing and improve trust in outgoing email. These records should be configured carefully so legitimate email still flows properly.
Watch Mailbox Rules And Forwarding
Unexpected forwarding rules, hidden delete rules, and unfamiliar delegates can be signs of account misuse. Regular review helps catch issues before they become larger incidents.
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