Cybersecurity Services 

Microsoft 365 Identity Defense

Protect your Microsoft 365 environment from account compromise, fraud and unauthorized access

Talk to an Expert
Microsoft 365 Identity defense, man looking at computer screen

Protect What Happens After Login

Email security and MFA are critical, but attackers increasingly find ways around them. Once inside a legitimate Microsoft 365 account, they can access tax documents, financial records, wire transfer communications and client information while appearing like trusted users. Microsoft 365 Identity Defense continuously monitors account activity, investigates suspicious behavior and responds before threats lead to fraud, data exposure or reputational harm.

  • 24/7 monitoring across Outlook, SharePoint, Teams and OneDrive
  • Detection of compromised accounts and suspicious user behavior
  • Investigation and response handled by Netgain security specialists
  • No dashboards, alerts or additional workload for your team

Catch Threats Beyond the Inbox

Most cybersecurity tools focus on preventing attacks before login or filtering malicious emails before they reach users. Microsoft 365 Identity Defense focuses on what happens next, identifying signs of account compromise, unauthorized access and attacker activity across Microsoft 365 before they impact clients, financial transactions or sensitive data.

Behavioral Threat Detection

Monitors user activity and behavioral patterns to identify account compromise, token theft and unauthorized access that traditional tools often miss.

Managed Investigation and Response

Netgain investigates suspicious activity and takes action to contain threats before they spread across your Microsoft 365 environment.

Microsoft 365 Activity Monitoring

Provides visibility into activity across Outlook, SharePoint, Teams and OneDrive, not just login events.

Threat Containment & Forensic Reporting

Response actions may include terminating active sessions, removing malicious rules and securing compromised accounts. Detailed forensic reporting shows what occurred, what was accessed and recommended next steps.

What You Get

  • Continuous monitoring across Outlook, SharePoint, Teams and OneDrive
  • Faster detection of account compromise and unauthorized access
  • Reduced risk of wire fraud and business email compromise
  • Visibility into threats operating inside Microsoft 365
  • Expert investigation and response by Netgain security specialists
  • Detailed reporting and actionable recommendations
  • No dashboards to manage or alerts to review

Complimentary 30-Day Monitoring Assessment

For a limited time, Netgain is offering a complimentary 30-day Microsoft 365 monitoring assessment. Gain visibility into account activity, suspicious behavior and potential identity risks across your environment, with findings typically available within approximately two business days.

Learn About the Free Assessment
Microsoft 365 Identity defense offer form
Netgain Helped AAFCPAs Build a Scalable, Secure IT Foundation
Netgain Helped AAFCPAs Build a Scalable, Secure IT Foundation
“Firms can’t defend themselves from what they can’t see, and they can’t see what they don’t log. As AI gives bad actors new ways to scale and automate attacks, cohesive log aggregation and monitoring have become table stakes for CPA firms. Netgain’s Nexus360 XDR service provides the visibility and alerting we need and continues to deliver tremendous value to our firm.”

CIO Peter Sebilian, AAFCPAs

Read Full Case Study

Stop Account Compromise Before It Impacts Clients

Email security protects the inbox. Microsoft 365 Identity Defense helps stop attackers operating inside compromised accounts before they can access client financial data, manipulate communications or commit fraud.

Talk to Us Today