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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.

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Patch Newsday – 13 July 2021

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Patch Newsday – 8 June 2021

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April 15, 2026

Patch Tuesday April 2026 - Critical Microsoft Security Patches

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March 12, 2026

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March 2, 2026

Unauthenticated RCE in EXO: Why the Security Architecture of Open-Source AI Platforms Needs Immediate Attention

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Patch Tuesday January 2026 - Critical Microsoft Security Patches Released Including Vulnerabilities Being Actively Exploited in the Wild

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December 9, 2025

Patch Tuesday December 2025 - Critical Microsoft Security Patches Released For Privilege Escalation and Remote Code Vulnerabilities

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October 15, 2025

Patch Tuesday October 2025 - Critical Vulnerabilities: Remote Code Execution, Privilege Escalation, Secure Boot Bypass, and VM Escape Patches

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September 10, 2025

Patch Tuesday September 2025 - Critical Microsoft Security Patches Released for Privilege Escalation and Remote Code Vulnerabilities

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August 9, 2025

Dispatches From the Desert: DEF CON Day One

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Dispatches From the Desert: Black Hat Day Two

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August 7, 2025

Dispatches From the Desert: Black Hat Day One

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June 11, 2025

Patch Newsday June 2025 - Critical Microsoft Security Patches Released for Multiple Code Execution and Privilege Escalation Vulnerabilities

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May 14, 2025

Patch Newsday May 2025 - Critical Microsoft Security Patches Released for Multiple Privilege Escalation and Code Execution Exploits

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Immersive Uncovers Critical Vulnerabilities in Planet Technology Network Devices

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April 13, 2022

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February 9, 2022

Patch Newsday February 2022: Small But Mighty

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January 28, 2022

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December 17, 2021

Patch Newsday: Christmas Chaos or Silent Night?

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September 15, 2021

Patch Newsday: 14 September 2021 – Lousy Browsers and Arsey RCEs

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Patch Newsday 10 August: Ironic exploitation and the spectre of PrintNightmare

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Disclosure Dilemmas: Vulnerable Stalkerware

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Research: Can you build spyware for a Fitbit?

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