The Good Tech Companies - Inside Kishore Sunderajulu’s Mission to Secure Global Payment Systems

Episode Date: November 21, 2025

This story was originally published on HackerNoon at: https://hackernoon.com/inside-kishore-sunderajulus-mission-to-secure-global-payment-systems. Kishore Sunderajulu advances global payment security through EMV, tokenization, AI-driven fraud prevention, and regulatory-aligned product innovation. Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity. You can also check exclusive content about #digital-payment-security, #kishore-sunderajulu, #emv-and-tokenization, #ai-fraud-detection, #fintech-compliance, #discover-financial-services, #marqeta-payments, #good-company, and more. This story was written by: @jonstojanjournalist. Learn more about this writer by checking @jonstojanjournalist's about page, and for more stories, please visit hackernoon.com. Product leader Kishore Sunderajulu has spent 20+ years securing global payments—from EMV rollouts to Discover’s tokenization platform and AI-driven fraud reduction. His work bridges innovation and regulation, improving authentication accuracy, reducing chargebacks, and shaping secure, inclusive digital finance. At Marqeta, he continues building scalable, trusted payment systems.

This audio is presented by Hacker Noon, where anyone can learn anything about any technology. Inside Keshore Sundarajulu's mission to secure global payment systems by John Stoyan journalist. Whenever someone taps a card or authorizes a digital payment, they rarely consider the complex systems protecting their transaction. Behind that everyday moment stand professionals like Kishore Sundarajulu. As a product leader, he has spent over 20 years designing secure and scalable systems that keep global commerce running. His work intersects technology, regulation, and human behavior in a way that helps digital payments stay safe and inclusive. A balance between progress and

protection. The payments industry faces a constant tug of war between innovation and security. For instance, new methods such as e-commerce and mobile wallets have gained ground along with contactless payments. As a result, more sophisticated fraud attempts have emerged. Additionally, global compliance requirements like PCIDSS, PSD2, and Durban Regulation 2 further add to the challenge. Nevertheless, Khashore is driven to turn these complexities into opportunities for progress. My inspiration to build a career in the payments industry originated from a deep curiosity about how technology could make financial transactions more secure, accessible, and seamless for people around the world, he says, progress from EMV payments to tokenization.

Khashore's early career aligned with fintech shift from vulnerable magnetic stripes to EMV chip cards. He worked with over 100 banks and merchants across continents to roll out the new secure card technologies. That work laid the foundation for modern transaction security. It also gave him first-hand insight into how global collaboration can strengthen consumer protection. At Discover Financial Services, Khashore led key programs that transformed the company's approach to digital payments. He directed the nationwide launch of Discover's EMV contactless debit cards, developed the DPAS specifications tomeat regulatory standards, and architected the emerging payments platform to support tokenization on the Discover Pulse switch. These efforts helped position Discover as a leader in

digital payments innovation and EMV CO3DS2.3.1. I saw firsthand how strategic innovation could modernize legacy infrastructure and redefine how consumers interact with money, he says. His leadership resulted in a 30% lift in authentication accuracy and a 25% drop in fraudulent chargebacks. These outcomes proved that compliance and creativity could coexist. Secure and inclusive digital finance. In my current role at Marquetta, I lead product strategy and development focused on delivering secure, scalable and intuitive payment experiences across global markets, Keshore says. His overall aim is to reduce fraud exposure by double digits. He also looks forward to creating payment products that make security unobtrusive and practical for every

transaction. In the arena of financial technology leadership, Khashore contributes topor-reviewed publications. This work advances understanding of transaction security, tokenization, and multi-factor authentication frameworks. His research and insights have appeared in the International Journal of Science and Research in the Advanced International Journal of Multidisciplinary research. The power of trusted frameworks, one of Kishore's strong. strengths lies in transforming regulatory pressure into practical progress. Where others see regulatory compliance as a constraint, he views it as a framework for trust. For example, I've architected tokenization frameworks and cryptogram strategies that enable secure, real-time transactions

while meeting regulatory requirements such as PSD-2 and strong customer authentication, SCA, he says. In the process, he has modernized aging infrastructures without sacrificing speed or safety. artificial intelligence in payments. Looking forward, Khashore Sundarajulu's focus includes integrating eye-driven payment solutions and agentic AI in fintech systems to enhance fraud detection and automate risk management. He aims to create frameworks that support ethical AI and financial services and his vision for the future of payments centers on transparency, inclusion, and intelligence. Ultimately, my vision is to transform the future of digital finance while ensuring the United States remains at the forefront of global financial technology and AI leadership,

he says. Progress in the digital payment ecosystem means more than creating the newest feature or app. Each tap, click, and authorization represents the potential for global fintech transformation. When innovation is rooted in purpose, it creates solutions that endure, build trust, and truly transform industries, Keshore states. Thank you for listening to this hackernoon story, read by artificial intelligence. Visit hackernoon.com to read, write, learn and publish.