

I am a Principal Security Researcher at HSBC, and volunteer as the Technical Director for the charity Trust Leeds. My work as a researcher spans Azure, Office365, Web Applications, Desktop Applications, APIs, Social Engineering, Red Teaming, Internal and External Infrastructure, WiFi, Firewalls, Operational Technology, Embedded Systems,
I am a Principal Security Researcher at HSBC, and volunteer as the Technical Director for the charity Trust Leeds. My work as a researcher spans Azure, Office365, Web Applications, Desktop Applications, APIs, Social Engineering, Red Teaming, Internal and External Infrastructure, WiFi, Firewalls, Operational Technology, Embedded Systems, and Z-Series Mainframes. I have also conducted research into, and subsequently spoken publicly about, areas including novel data exfiltration techniques via DNS and Cross-Site Scripting (XSS).
Whilst leading the application pentesting practice at KPMG UK, I improved the quality of the application security testing and developed the methodologies and training process for all security consultants at the business. I also managed the day to day of over contracts worth c.3 million pounds, and was the technical support for a further c1.5 million.
During my time as a Dual (App and Inf) CHECK Team Leader, I successfully led a series of high profile engagements against public sector and military clients. These engagements have spanned from the initial client engagement, through scoping to delivery and post-engagement debriefing. I’ve also had the pleasure of mentoring a number of number of junior staff and apprentices. This mentoring has included training staff to pass exams, mentoring CHECK Team Members in their reporting and also taking apprentices from day 1 to qualified security consultants.
HSBC
Principal Security Researcher
Three Months
Trust Leeds
(https://www.trustleeds.org.uk/)
Technical Director
Volunteer
Give Years - Current Role
KPMG UK
Lead Pentester (Manager)
Two years
Application Pentesting Lead
Eighteen Months
Pentest People
(https://www.pentestpeople.com/)
Senior Service Development
HSBC
Principal Security Researcher
Three Months
Trust Leeds
(https://www.trustleeds.org.uk/)
Technical Director
Volunteer
Give Years - Current Role
KPMG UK
Lead Pentester (Manager)
Two years
Application Pentesting Lead
Eighteen Months
Pentest People
(https://www.pentestpeople.com/)
Senior Service Development Consultant
One Year
Penetration Tester (Web Application, API, Azure, Office365, Social Engineering, Red Teaming and External Infrastructure)
Three Years
Load Testing Lead Architect
One Year
MS Cloud Security Lead
One Year
Dark Web Monitoring Lead Architect
Eight Months
DarkInvader
System Architect
Three Months
Service Development
Four Months
Copyright © 2026 Liam Follin - All Rights Reserved.
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