Managed Detection and Response (MDR) for Microsoft 365

We provide continuous monitoring and rapid response for threats targeting your Microsoft 365 environment, including Exchange, SharePoint, OneDrive, and Teams. Our security analysts detect suspicious activity, investigate alerts, and take action to prevent unauthorized access or data loss.

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What’s Included

Microsoft 365 Threat Monitoring
Track sign-ins, file sharing, admin changes, and mailbox activity in real time.

Phishing and Account Compromise Detection
Identify credential theft, malicious inbox rules, and risky OAuth app grants.

Incident Investigation
Validate alerts, determine impact and scope, and document root cause.

Automated Response Actions
Lock or sign out users, revoke sessions, disable malicious rules, and block risky apps.

Containment and Remediation
Reset credentials, enforce MFA, purge phishing messages, and restore safe configurations.

Activity Reporting
Provide summaries of detected incidents, actions taken, and recommendations to prevent recurrence.

Why It's Important

Microsoft 365 is a prime target for phishing and credential-based attacks. MDR adds always-on detection and hands-on response so threats are contained before they spread across email, files, and collaboration tools. Many cyber liability insurers now expect documented 24/7 monitoring, MFA enforcement, and incident response evidence. MDR helps you meet these requirements and maintain coverage eligibility.

How It Works

The service continuously monitors Microsoft 365 sign-in, mailbox, and file activity to establish a baseline of normal behavior. When potential threats are detected, a high-priority ticket is automatically created and sent to our security team for review. Analysts verify the event, contain the threat, and document each step in your ticket for full transparency. Remediation actions may include disabling accounts, revoking sessions, removing phishing messages, and enforcing new authentication controls to restore security and prevent recurrence.

Service Hours and Response Targets

Monitoring and detection are active 24 hours a day, every day of the year. When the monitoring vendor identifies suspicious behavior, an automated alert and case are created. The vendor’s security operations center investigates the alert, performs initial triage, and contains confirmed threats such as account takeovers or malicious inbox rules.

Once containment is complete, our team reviews the findings, validates the resolution, and performs any follow-up actions within your Microsoft 365 tenant. We handle communication, coordination with your staff, and post-incident reporting to ensure the response is fully documented and preventive measures are in place.

Critical Alerts – Immediate containment and after-hours escalation when active compromise is confirmed.
High and Medium Alerts – Reviewed and actioned during business hours with defined escalation paths.
Reporting and Review – Monthly summaries of incidents, trends, and recommended improvements.

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Contact our team to begin a plan that works for your business.

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