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Kevin Breen

Senior Director Cyber Threat Research

Kev Breen currently serves as Senior Director of Cyber Threat Research at Immersive, where he helps organizations assess, build, and prove their Cyber Workforce Resilience. He is a renowned expert on new and emerging threats.

Prior to his time at Immersive, Breen spent 15 years in the military with the Royal Signals, starting as a radio technician repairing radio electronics and communications, before moving on to digital networks specialising as a malware analyst protecting UK MOD networks against cyber attacks. With over two decades of experience in IT and cybersecurity, Breen has learned the tradecraft for defensive, offensive, and deceptive cyber operations.

Breen has conducted extensive open-source research, including creating and releasing toolkits for network defenders, mainly for malware analysis and decryption, as well as writing the YARA rules, which are still recommended by VirusTotal. Breen’s open-source research gets a lot of attention, not only from the cybersecurity community, but also from the threat actors themselves.

Cybersecurity
Aug 6, 2025

Cyber Threat Protection & Prevention

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Insider Threats: Definition, Types, and How to Tackle Them

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AI
Jun 6, 2025

The Rise of Agentic AI: Is Your Cyber Team Ready?

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Cybersecurity
Jan 9, 2024

Combat Modern Cyber Threats with a Modern Exercising Program

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Cyber Resilience
Jun 6, 2023

4 Strategies for Building Resilience against Emerging Threats

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Cyber Resilience
Mar 16, 2022

Strengthening cybersecurity teams’ capabilities: Cyber Workforce Benchmark 2022

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