About PaymentBrief
PaymentBrief is a publication covering payments infrastructure, fintech strategy, and the role of AI in money — written for the people who build and operate payment systems.
Most payments coverage falls into two categories: wire-service announcements that relay press releases unchanged, or academic research that reaches practitioners too late to be useful. PaymentBrief sits in neither category. The goal is briefings that read like they were written by someone inside the room — because they were.
What we cover
The operational realities of payments: PSP contracts and what's actually negotiable, authorisation rate optimisation, fraud and chargeback economics, cross-border payment infrastructure, and how AI is actually deployed in production payment stacks versus how it's described in vendor keynotes.
Coverage spans the full breadth of global payment markets — from mature card-dominated economies in Europe and North America to real-time rail ecosystems like India's UPI, Brazil's Pix, Thailand's PromptPay, and the bank-consortium A2A apps of Northern Europe. Africa's telco-led mobile money, Latin America's instant-payment rollouts, and the Middle East's regulator-led infrastructure all get the same operator treatment. Where the gap between public coverage and operational reality is widest, PaymentBrief goes deepest.
Who reads this
Payments operators, fintech founders and product managers, investors evaluating the sector, and merchants who process enough volume that contract terms and authorisation rates materially affect their unit economics. The content is written for people who need to act on what they read.
Editorial standards
PaymentBrief operates under a documented set of editorial principles covering source standards, verification, independence, corrections, conflict of interest, and AI usage. Full details are on the Editorial Policy page.
Who's behind PaymentBrief
Director, Digital Payments · Razer · 13 years in payments & fraud
Shaun Toh is the founder of PaymentBrief. Based in Singapore, he leads digital payments at Razer, with 13 years of experience across payment strategy, fraud risk management, and global payment optimization — working with merchants, PSPs, and technology teams across North America, Europe, APAC, and Latin America.
Consulting
PaymentBrief also takes on a limited number of consulting engagements — payments strategy, PSP selection and contract negotiation, authorisation rate optimisation, and market entry. If you're working on a payments problem and want a second opinion, get in touch.
Have a question or a payments problem to solve? Get in touch →