John Sotiropoulos

Trailblazer
DISC Type : DI

Senior Security Architect at Kainos

United Kingdom

Overview

John Sotiropoulos is the Head of AI Security at Kainos and a best-selling author on Adversarial AI. A graduate of Edinburgh Napier University, he plays a key role in global cybersecurity standards with OWASP and the US AISIC. Colleagues describe him as innovative, pragmatic, and business-focused, with deep technical expertise.

John is passionate about educating the next generation of cybersecurity professionals, recently delivering a guest lecture on AI Security for undergraduates at The Manchester Metropolitan University. He actively shares his expertise to bridge the gap between academic theory and practical industry application, focusing on topics like GenAI and preventing shadow AI.

He authored the official implementation guide for the UKs AI Cybersecurity Code of Practice, which was later adopted as a global ETSI standard.

Personality Overview

Friendly But Fast

Informal

Assertive

They respond better to a combination of speed and relationship.  They are more likely to be open to unproven but exciting technologies. They do not mind taking risks and can make hard decisions, if necessary.

Topics They Care About

AI Security
As Head of AI Security, a best-selling author on the topic, and a leader in OWASP's GenAI Security Project, this is his core professional focus.
Agentic AI Risks
He is co-leading the OWASP initiative to define the top security risks for agentic AI applications, indicating a forward-looking focus on emerging threats.
Cybersecurity Standards
He liaises with NIST, MITRE, and NCSC and authored a UK guide that became a global standard, showing a commitment to shaping industry-wide security practices.

Media Appearances

John has no verified media appearances

Work History

3-2021
Senior Security Architect at Kainos
2-2020 - 3-2021
Chief Technology Officer at Stuffstr
6-2018 - 12-2019
Chief Technology Officer at buzzmove
6-2017 - 5-2018
VP of Product & Engineering at Trunomi
1-2015 - 6-2017
VP of Applications at Alfresco

Education

2018 - 2020
Master of Science - MS from Edinburgh Napier University
1992 - 1995
BSc (1st) from Birmingham City University

More Information

Social Presence :

Prographics :

Exp : 23 Location : United Kingdom Job Level : Senior Designation : Senior Security Architect at Kainos
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Insights For Selling To John

During A Call Or A Meeting

DO's

  • Build a trustworthy relationship while keeping the product center-stage
  • Ask them for a lunch or coffee once some rapport has been established
  • Use phrases like ‘your decision will’, ‘you will impact’ etc.

DONT's

  • Don't make any commitments that you might not be able to fulfill
  • Don’t hesitate from asking questions or pushing them, but take a friendly approach
  • Don’t hesitate from asking them how they truly feel about your product

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with John is

  • Relationship and product conviction matter equally, followed by a sense of achievement.
  • Will you ever get a clear answer from John

  • If they are not convinced, they will say no albeit in a friendly manner.


Insights For Deal Planning

    How fast (or slow) will John move?

  • If you earn their trust and they develop faith in the product, they can make decisions quickly.
  • Can John take some risk or not?

  • They can take risks if necessary.

You And John

Personality Compatibility


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