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Principal Security Researcher

Liam Follin

Liam FollinLiam FollinLiam Follin
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About Me

Skillset

Experience

Experience

 

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.

Experience

Experience

Experience

HSBC

(https://www.hsbc.com/)


Principal Security Researcher

Three Months


Trust Leeds

(https://www.trustleeds.org.uk/)


Technical Director

Volunteer

Give Years - Current Role


KPMG UK

(https://kpmg.com/uk)


Lead Pentester (Manager)

Two years


Application Pentesting Lead

Eighteen Months


Pentest People 

(https://www.pentestpeople.com/)


Senior Service Development 

HSBC

(https://www.hsbc.com/)


Principal Security Researcher

Three Months


Trust Leeds

(https://www.trustleeds.org.uk/)


Technical Director

Volunteer

Give Years - Current Role


KPMG UK

(https://kpmg.com/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

(https://darkinvader.io/)


System Architect

Three Months


Service Development 

Four Months


SOCIALS


Copyright © 2026 Liam Follin - All Rights Reserved.

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