Jason Costain is a consultant specialising in fraud prevention and financial crime defence. Jason is the founder of Javloc Ltd, and has leveraged over 30 years of expertise to assist banks and organisations in strengthening their defences against fraud, and financial crime.

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Jason Costain is a leading fraud prevention expert with a career spanning more than three decades.   Before founding Javloc Ltd, Jason led fraud and financial crime defence teams at prominent UK banks, where he played a pivotal role in combating emerging threats such as authorized push payment (APP) fraud and cryptocurrency-related scams. Jason holds an ICA Diploma in Financial Crime Prevention, underscoring his commitment to staying at the forefront of the field.

 

In 2023, Jason established Javloc Ltd to provide specialized consulting services aimed at helping financial institutions and businesses enhance their fraud detection and prevention capabilities. As the Director of Javloc, Jason focuses on implementing cutting-edge technologies and strategies to mitigate fraud risks.

 

Throughout his career, Jason has demonstrated that significant improvements in fraud prevention can be achieved primarily through building skilled teams to exploit pre-existing technology that banks use.  

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Jason has been instrumental in driving innovations such as real-time payment monitoring systems, biometrics, AI-driven risk scoring, and customer-centric fraud education. 

These measures have significantly reduced fraud losses across UK banks while improving customer protection standards. Jason actively contributed to shaping the UK's voluntary reimbursement code for scam victims and led NatWest Group’s response to scams, which has set a global benchmark for fraud prevention best-practice.  His work has encouraged banks to invest in customer-centric fraud detection technologies and adopt more robust reimbursement policies. 

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Jason emphasises the human element in fraud prevention, sharing stories of scam victims to highlight the importance of empathy in policy-making. 

 

Jason believes that sharing fraud prevention best practice between banks and educating customers about fraud risks is critical. Jason envisions a collaborative ecosystem where banks work with key players such as crypto firms, regulators, telcos and technology providers to create a hostile environment for fraudsters. Through Javloc Ltd, he aims to lead this transformation by combining advanced technologies with customer-first strategies to build trust and resilience across industries.

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