Home
Resources
Author Profile

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.

Research
Oct 15, 2025

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

Read More
Research
Sep 10, 2025

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

Read More
Thought Leadership
Aug 11, 2025

Dispatches From the Desert: DEF CON Day Three

Read More
Thought Leadership
Aug 10, 2025

Dispatches From the Desert: DEF CON Day Two

Read More

Dispatches From the Desert: DEF CON Day One

Read More

Dispatches From the Desert: Black Hat Day Two

Read More