24/7 Threat Monitoring for Your Microsoft 365 Environment
Microsoft 365 is the gateway to your business — which makes it a prime target for attackers. From phishing emails to hijacked accounts, today’s threats are stealthy and often identity-based. Our Managed Detection and Response (MDR) for Microsoft 365 gives you 24/7 visibility into your cloud environment, actively detecting suspicious sign-ins, inbox rules, and data sharing behaviours that indicate compromise.
With continuous monitoring, real-time alerting, and human-led analysis, our MDR service helps catch threats early, before they spread or cause damage. Whether it’s an MFA bypass attempt, foreign login, or malicious mailbox rule, we’ll investigate, triage, and guide you on the right response, all as part of your retained support plan.
Key Features & Benefits of MDR for Microsoft 365
Suspicious Sign-In Detection
We continuously monitor for high-risk logins, including impossible travel, legacy authentication, MFA abuse, and access from unusual geolocations. If something looks off, you’ll know about it.
Malicious Inbox Rule Monitoring
Attackers often create hidden rules to forward emails or hide their tracks. We detect unauthorised mailbox changes, like auto-forwarding or message deletion, so threats can’t linger undetected.
External File Sharing Alerts
If sensitive files in OneDrive or SharePoint are suddenly shared with unknown external contacts, we’ll alert you immediately, helping you prevent a potential data leak.
Human-Led Investigation and Triage
Every alert is reviewed by real analysts, not just algorithms. Our security team filters out noise, investigates suspicious activity, and provides clear next steps when action is required.
Integrated with Microsoft 365 Security Tools
Our service uses the native security signals already built into Microsoft 365, giving us full visibility without needing extra agents or disruption to your team.
Fully Managed by Get Support
As part of your retained support plan, our team takes care of monitoring, alerting, and response guidance, so you can focus on running your business, not reacting to threats.
Frequently Asked Questions
Not quite. Microsoft Defender offers some built-in protection, but it’s only part of the picture. Our MDR service adds 24/7 monitoring, human-led threat detection, and actionable response — giving you expert oversight and faster intervention when something looks suspicious.
No, our MDR service works with most Microsoft 365 business plans, including Business Standard, E3, and E5. As long as your tenant provides access to sign-in, file activity, and mailbox logs, we can monitor it. We’ll confirm compatibility during onboarding.
Absolutely. DNSFilter allows us to create custom filtering policies based on your business needs. You can choose to block entire categories, like gambling or political content, or allow exceptions as needed.
When our team verifies suspicious activity, like unusual sign-ins, malicious inbox rules, or abnormal file sharing, we’ll notify you right away. You’ll receive a clear summary of what’s happened and what action to take, or we’ll guide you through the response directly.
This service is available exclusively to clients on a retained IT support plan with Get Support. It can be added as a standalone cybersecurity enhancement, or included as part of a broader security package tailored to your business.