KnowBe4 Collaborates with Microsoft: Strengthening Email Security Through Strategic Integration

KnowBe4 Team | Jun 17, 2025


Image UpdatedIn today's rapidly evolving threat landscape, cybercriminals are becoming increasingly sophisticated in their attack methodologies, particularly when it comes to email-based threats.

Organizations worldwide are recognizing that a single-vendor approach to security, while valuable, may not provide the comprehensive protection needed to defend against the full spectrum of modern cyber threats. This reality has led to a growing demand for integrated API based security experiences that combine the strengths of multiple best-in-class technologies.

Today, we're excited to announce a significant milestone in email security innovation: KnowBe4 Defend will soon directly integrate with Microsoft Defender for Office 365’s quarantine functionality. Along with this integration, this represents the launch of Microsoft's new ICES (Integrated Cloud Email Security) vendor ecosystem, marking a pivotal moment in collaborative cybersecurity defense.

The Power of Collaboration: Better Together
The collaboration between KnowBe4 and Microsoft exemplifies the "better together" philosophy that drives meaningful innovation in cybersecurity. By combining Microsoft's email and collaboration security infrastructure with KnowBe4's leadership in human risk management and robust threat detection capabilities, organizations can now benefit from a truly integrated defense strategy that benefits from the unique strengths of both platforms.

Microsoft Defender for Office 365 provides a comprehensive security framework that safeguards email and collaboration workloads leveraging advanced AI, global threat intelligence and information on known attack infrastructure. However, the threat landscape continues to evolve, and even the most sophisticated platforms can benefit from additional layers of specialized protection.

This is where KnowBe4 Defend shines. Built specifically to complement Microsoft 365's existing email security, Defend brings Agentic AI approaches to advanced inbound threat detection capabilities that complement and enhance Microsoft's native protections. The integration allows organizations to maintain their existing Microsoft security investments while adding an additional layer of specialized threat detection and response.

Enhanced Detection Through Intelligent Integration
The technical implementation of this integration delivers immediate value to customers through seamless workflow integration. When Defend identifies a message as potentially malicious, the system can now automatically push that message into Microsoft's quarantine using their established policies and procedures.

This integration eliminates the friction that often exists between multiple security tools, creating a unified experience where security teams can manage threats from a single, familiar interface. Once messages are quarantined through this integrated process, administrators gain complete visibility into disposition decisions made by KnowBe4 Defend directly within their existing Microsoft security console.

The result is a streamlined security operation that reduces complexity while increasing protection efficacy. Security teams no longer need to juggle multiple interfaces or correlate data across disparate systems – instead, they can focus on what matters most: protecting their organization from sophisticated email threats.

Defense in Depth for Modern Threats
Today's email threats have evolved far beyond simple spam and obvious phishing attempts. Modern attackers employ sophisticated techniques including business email compromise (BEC), advanced persistent threats (APTs), zero-day exploits, and highly targeted spear-phishing campaigns that can bypass traditional security measures.

These sophisticated attacks require equally sophisticated defenses. A single security solution, regardless of how advanced, may not catch every threat variation or attack vector. The integration between KnowBe4 Defend and Microsoft Defender for Office 365 creates multiple layers of analysis and detection, significantly increasing the likelihood of identifying and stopping threats before they reach end users.

This defense-in-depth approach is particularly valuable for clearer transparency and attribution against threats that may evade one detection system but are caught by another. By combining Microsoft's comprehensive threat intelligence and machine learning capabilities with KnowBe4's specialized detection algorithms, organizations create overlapping fields of protection that dramatically reduce the attack surface.

Customer Choice and Business Outcomes
One of the most significant benefits of this integration is the choice it provides to customers. Organizations can continue to leverage their existing Microsoft investments while adding specialized capabilities where needed. This approach respects existing infrastructure decisions while providing pathways for enhanced protection.

The business outcomes of this integration extend beyond technical benefits. By reducing the complexity of managing multiple security tools, IT teams can allocate more time to strategic initiatives rather than tactical tool management. The streamlined workflow reduces mean time to detection and response, minimizing the potential impact of successful attacks.

Furthermore, the integration helps organizations achieve better return on investment from their security spending. Rather than replacing existing solutions, the integration approach allows organizations to enhance their current capabilities, maximizing the value of previous technology investments while addressing evolving security requirements.

This new collaboration builds on the recent success and innovation with Microsoft around providing better experiences for InfoSec teams and users with the Phish Alert Button for Outlook.

The Future of Collaborative Security
This collaboration between KnowBe4 and Microsoft represents more than just a technical integration – it signals a new approach to cybersecurity collaboration. As the first initiative in Microsoft's ICES vendor ecosystem, this integration establishes a blueprint for how leading security vendors can work together to deliver enhanced protection for mutual customers.

The ecosystem approach recognizes that it is complicated for a single vendor to address every aspect of modern cybersecurity challenges. By creating frameworks for collaboration and integration, vendors can focus on their core strengths while ensuring customers benefit from best-in-class capabilities across all security domains.

Conclusion
The integration of KnowBe4 Defend with Microsoft Defender for Office 365 quarantine represents a significant advancement in email security. By combining Microsoft's robust infrastructure with KnowBe4 specialized threat detection capabilities, organizations can achieve protection against today's sophisticated email threats while maintaining operational simplicity.

This relationship demonstrates that the future of cybersecurity lies not in choosing between competing solutions, but in intelligently combining complementary capabilities to create comprehensive defense strategies. As threats continue to evolve, collaborative approaches like this integration will become increasingly essential for organizations seeking to maintain robust security postures in an ever-changing threat landscape.

For existing customers and organizations evaluating email security solutions, this integration offers the best of both worlds: proven Microsoft infrastructure enhanced with specialized KnowBe4 capabilities, all delivered through a unified, streamlined experience that prioritizes both security effectiveness and operational efficiency.


Stop Advanced Phishing Attacks with KnowBe4 Defend

KnowBe4 Defend takes a new approach to email security by addressing the gaps in M365 and Secure Email Gateways (SEGs). Defend helps you respond to threats quicker, dynamically improve security and stop advanced phishing threats. It reduces admin overhead, enhances detection and engages users to build a stronger security culture.

BreachSim LogoWith KnowBe4 Defend you can:

  • Reduce risk of data breaches by detecting threats missed by M365 and SEGs
  • Free up admin resources by automating email security tasks
  • Educate users with color-coded banners to turn risks into teachable moments
  • Continuously assess and dynamically adapt security detection reducing admin overhead
  • Leverage live threat intelligence to automate training and simulations

Request a Demo

PS: Don't like to click on redirected buttons? Cut and paste this link in your browser:

https://www.knowbe4.com/products/defend-demo



Subscribe to Our Blog


Ransomware Awareness Month




Get the latest about social engineering

Subscribe to CyberheistNews