July 14, 2025 2 Minute Read

Phishing remains the number one method attackers use to gain initial access to organizations. That makes your workforce the front line of defense and your ability to identify, neutralize, and respond to phishing attempts is more critical than ever.

Trustwave’s Managed Phishing for Microsoft is a service designed specifically for organizations leveraging Microsoft Office 365 and Defender for Office (E5 or equivalent). While Microsoft email security’s native tools are a strong foundation, today’s AI-enhanced phishing attacks demand greater protection, faster response, and more ongoing user awareness than most internal teams can support on their own.

Maximizing the effectiveness of Microsoft Defender for Office

Defender for Office includes powerful tools, including phishing simulations, protective policies, and AI security, very effective when properly used. However, threat actors now use generative AI and targeted social engineering to craft highly convincing lures that can bypass default defenses.

The most recent FBI numbers reinforces the urgency: phishing was the most reported cybercrime with 193,407 complaints, alongside 21,442 cases of business email compromise (BEC). This data confirms what security experts have long advised: a layered email security strategy is no longer optional, it’s a necessity.

What the Managed Phishing for Microsoft Service Delivers

Trustwave’s Managed Phishing for Microsoft adds capabilities to bolster Microsoft’s native defenses. Key components include:

• Technology Management: The Trustwave team manages the initial setup and ongoing configuration of phishing-related policies, rules, and tuning. This ensures optimal protection without overburdening your internal IT team.
• Detection Enhancement: Backed by the world-renowned SpiderLabs threat research team, Trustwave applies cutting-edge techniques and our proprietary AI/ML email security engines to detect even the most evasive phishing campaigns before reaching your users inboxes. This multi-layered protection reduces threat exposure by over 99%, closing gaps left by standard Microsoft filtering.
• Phishing Simulations: Regular, targeted simulations based on real-world phishing campaigns help test and improve user behavior. Trustwave customizes the experience based on your environment and threat landscape, delivering phishing simulations on a monthly basis. Each campaign includes user-level reporting and actionable next steps.
• Phishing Threat Response: 24/7 analysis, investigation, and response to suspected phishing emails. The service proactively identifies and neutralizes phishing threats, including user reported phishing and malware incident alerts that bypass Microsoft’s native tools.
• Reporting and Intelligence: Ongoing analysis of user behavior, attack patterns, and emerging phishing trends leads to intelligent tuning of your security posture. Trustwave experts provide strategic recommendations based on live threat data and client-specific insights.

Empowering Your Microsoft Investment

Whether your organization is already using Microsoft Defender for Office or evaluating its adoption, Trustwave’s Managed Phishing for Microsoft helps you get more out of your existing license while reducing security risk.

The service seamlessly integrates with Microsoft environments and adds Trustwave’s proprietary AI-powered email detection and threat intelligence, ensuring phishing and malware threats are stopped before they reach end users.

Ready to Use E5 Stop Phishing? Strengthen Your First Line of Defense

Let Trustwave’s Managed Phishing for Microsoft help you unlock the full value of your Microsoft E5 investment with the only end to end managed phishing service that prevents, detects, responds and educates all natively within your Microsoft ecosystem. By combining people, process, and proprietary AI-powered tools, your users become more than just recipients, they become informed, active defenders against the ever-evolving phishing threat landscape.

Stay Informed

Sign up to receive the latest security news and trends straight to your inbox from Trustwave.