Technical Director
Tim Reed
Tim is the Director and Co-Founder of Sentrium Security, responsible for developing innovative technical products and services, and leading the development of our advanced cyber capabilities. He oversees our penetration testing team, and supports our customers in understanding their security posture and manage risk effectively.
Before founding Sentrium, Tim worked in technical security consulting roles at Redscan and Portcullis (Cisco), and as an Intelligence Operator with HM Forces. These experiences shaped Tim’s ability to identify weaknesses across complex systems and communicate findings clearly. He is driven by pioneering high-quality security services and helping clients take practical steps to improve security.
Connect with Tim
Areas of expertise
- Web application penetration testing
- Infrastructure and network assessments
- Red teaming and adversary simulation
- Threat modelling and risk assessments
- Cloud security assessments
Writing focus
Tim writes about penetration testing approaches, emerging attack techniques, and practical methods for improving organisational security posture through evidence-based assessment.
Tim's work
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June 4, 2026
Redis Use-After-Free Remote Code Execution Vulnerability (CVE-2026-23479)
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March 19, 2026
Telnetd Unauthenticated Remote Code Execution (CVE-2026-32746)
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March 11, 2026
Microsoft SQL Server Elevation of Privilege Vulnerability (CVE-2026-21262)
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November 10, 2021
How effective is secure code review for discovering vulnerabilities?
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