Secure Growth Summit

Economist, journalist and broadcaster

Tim Harford is a world-renowned behavioural economist, award-winning Financial Times columnist, data detective and BBC broadcaster.

Described as ‘Britain’s Malcolm Gladwell’ (and as “a genius at telling stories that illuminate our world” by Gladwell himself) and as “perhaps the best popular economics writer in the world” by the New Statesman, Tim brings storytelling, humour, insight and intelligence to the world of data, work and statistics.

Fraud and Investigations Manager, John Lewis Partnership

John Lewis veteran Claire Tuck has held a series of security roles across the company, both in shops and the head office.

As Fraud and Investigations Manager for John Lewis Partnership, she works to protect profits and serve customers better. Her latest project? Returns fraud screening, which she’s eager to tell us about.

Senior Vice President, Security Solutions Europe at Mastercard

Julia oversees Mastercard’s Identity and Experience & Dispute Solutions in Europe, leading product management and go-to-market of payment and identity verification, dispute resolution services, and Digital Identity.

Over her tenure at Mastercard, she has advanced her payment expertise in different regional roles, including digital payment product management and customer account management.

CEO at Ravelin

Martin is the CEO of Ravelin, which prevents fraud and optimises payments for online businesses around the globe. With a background in software and physics, he believes in harnessing the power of technology to solve real-world problems.

Martin co-founded Ravelin to put cutting-edge artificial intelligence to good use in the fight against fraud: “What I really get my kick from is building something that solves a problem,” he explains. “We do this every day at Ravelin.”

Global Payments Manager at Puig

Daniella is an expert in fraud and payments, with extensive experience in tech, focusing on preventing fraud while ensuring smooth payment processes and enabling secure and seamless transactions.

Currently leading the Puig Beauty and Fashion multi-brand portfolio in those regards, Daniella has a background and many years of experience within international security affairs that allows her to combine insights from tech, security, policy and commerce.

Product Director at Ravelin

A lifelong fascination with crime and conflict led Katrina to study Politics and Criminology before earning her Master’s in Security Studies. Initially serving as a data analyst at a tech startup, she transitioned into product management, where she has spent the past decade.

Katrina has worked on technology that manages risk in conflict zones and high-risk regions, as well as for the fintech sector. In 2018, she joined Ravelin’s Product team – a serendipitous role that brings together diverse elements of her background, from risk to payments, crime and technology.

Senior Agile Delivery Lead at Nando's

Director Order, Payment & Fraud at La Redoute

Myriam is Director of Order, Payment & Fraud at La Redoute. She is an expert of international payment and fraud strategies, focused on delivering impact for the customers.

Driving this impact relies on a 360° approach from customer experience to internal operations, design to delivery, business to tech. She remains ever passionate about payment and fraud as a game changer.

Senior Data Scientist at Ravelin

While Digant was studying physics, a computational project piqued his interest around programming, data science and machine learning – areas of interest which quickly won him over.

His first job was at credit lender NewDay, as part of the Credit Risk/Data Science team. Having been exposed to fraud and risk management, Digant joined Ravelin in July 2021, where he works as a Senior Data Scientist.

Senior Data Scientist at Ravelin

Dr Alfred Tiley is a Data Scientist with a variety of experience in the private and public sectors, focused on fraud prevention, transport, and healthcare. He has an accomplished background in astronomy academia as an Oxford PhD, and has held a Postdoctoral Fellowship at the Forrest Research Foundation, Australia.

Alfred's work at Ravelin is focused on machine learning model development, deployments, and monitoring for the detection and prevention of online payment fraud and refund abuse.

Online Loss Prevention at Next Plc

Boasting an impressive 17 years at iconic British retailer Next, Nadeem has worked in a variety of roles across the spectrum of fraud prevention and risk mitigation.

With experience that includes operations, strategy, risk and now loss prevention, he leverages the power of data, strategic thinking and proactive monitoring to anticipate developments and deliver results.

Global Partnerships Manager at Ravelin

Liana’s acumen in supporting Ravelin’s partners – merchants and PSPs around the world – is only matched by her deep understanding of the fraud and payments landscape.

Previously serving as Account Manager and today as a Global Partnerships Manager, Liana works closely with PSPs and technology partners to drive strategic collaborations and optimize solutions for diverse businesses. She thrives on delivering impactful solutions that enhance security and efficiency across global markets.