Your Microsoft 365 Settings Might Be Helping Hackers

Most small and mid-sized businesses are still running Microsoft 365 and Windows with weak defaults: no enforced MFA for everyone, legacy sign-in methods still allowed, open file-sharing, and basic email protections only half set up. Attackers know this, and many account takeovers start not with some fancy exploit but with these easy gaps.

🔐 Microsoft 365 sign-ins

Require MFA for every user (not just admins) and enable Security Defaults or Baseline Security Mode to block legacy authentication.

Use separate admin accounts with stronger, phishing-resistant MFA and alerts for new admin role assignments.

📤 Sharing and email

Tighten SharePoint/OneDrive so links are not “anyone with the link” by default, especially for Finance, HR, and client folders.

Turn on and correctly configure SPF, DKIM, and DMARC, plus anti-phishing and Safe Links/Safe Attachments where your licensing allows.

💻 Windows computers

Keep automatic updates on and apply recommended security baselines so built-in protections stay enabled.

Remove everyday users from local admin so they cannot install risky software or turn off protections just to “make something work.”

SkyViewTek can go through these exact settings with you, flip the critical switches, and turn your Microsoft 365 and Windows environment from “default and exposed” into “baseline secure” without slowing the business down. Contact Bernie Orglmeister at support@skyviewtek.com or 610‑590‑5006.