Microsoft 365 is the backbone of most modern businesses, but a default setup leaves significant security gaps that attackers actively exploit. Many organizations in Massachusetts assume their M365 environment is secure simply because they’re paying for the service — but without proper configuration, your email, files, and user accounts can be far more vulnerable than you realize. Use the free tool below to score your current Microsoft 365 security posture and identify exactly where you need to improve.
Why Default Microsoft 365 Settings Aren’t Enough
When you activate a Microsoft 365 subscription, you get a functional environment — but not a secure one. Microsoft provides the tools, but the responsibility for configuration falls on you or your IT provider. Critical controls like multi-factor authentication (MFA), Conditional Access policies, and mailbox auditing are often disabled or misconfigured by default. A single compromised account in a poorly configured tenant can give attackers access to your entire organization’s data, email history, and internal communications.
The Most Common Microsoft 365 Security Gaps We See
After auditing dozens of Microsoft 365 tenants across Massachusetts businesses, the same issues appear repeatedly. Legacy authentication protocols are almost always left enabled, allowing attackers to bypass MFA entirely. Admin accounts frequently lack dedicated roles, meaning a single phishing attack can yield full global admin access. External sharing settings in SharePoint and OneDrive are often set to allow sharing with anyone — no account required. And email forwarding rules, one of the most abused techniques in business email compromise, are rarely monitored or blocked.
How Microsoft Secure Score Works — and Its Limitations
Microsoft provides a built-in Secure Score tool inside the Microsoft 365 Defender portal, which assigns a numeric score based on your current configuration. It’s useful, but it’s designed for IT professionals who already know what they’re looking at. The recommendations are often vague, and the interface doesn’t explain the real-world risk of ignoring a specific gap. Our M365 Security Scorecard translates those findings into plain language so you can understand what’s broken and why it matters for your specific business.
What to Do After You Get Your Score
If your scorecard reveals gaps, prioritize MFA enforcement and legacy authentication blocking first — these two controls prevent the majority of account takeover attacks. Next, review your admin roles and ensure no one is using a global admin account for day-to-day tasks. From there, work through Conditional Access policies, mailbox audit settings, and external sharing configurations. Many of these changes can be made in under an hour by a qualified IT provider, and the risk reduction is immediate.
Need help implementing the controls highlighted by this tool? Boston Managed IT provides cybersecurity and IT management for Massachusetts businesses.
