In any given week, new fraud tactics emerge, payment rules can shift, and chargeback trends change. Merchants may experience some of this firsthand, but often itโs not obvious how each development ties back to their business.
Fortunately, a handful of sharp, informed voices track these shifts closely and share their perspectives freely. If you want to stay informed and adjust in real time, hereโs a shortlist worth following.
15 points of view merchants should pay attention to
1. Brian Davis โ Dodgeball
Fraud orchestration and decisioning architecture
Brian is one of the few fraud leaders consistently connecting the dots between emerging fraud tactics, AIโs role in payments, and what merchants can do today to protect revenue. His LinkedIn posts blend hands-on experiments, like testing whether AI agents can mimic human behavior during sign-up, login, and account updates, with practical frameworks for pushing a fraudsterโs ROI into the red.
His House of Fraud newsletter expands on that work, breaking down fraud ring business models (including full P&Ls), detailing playbooks for account takeover, and analyzing how new infrastructure like agent-specific payment rails could reshape risk. If you want both day-to-day tactics and a view of where payments are headed, following Brian is like having an early-warning system in your feed and inbox.
2. Jonathan Arras โ Visa
Network-level risk and policy
As Sr. Director of Fraud Product at Visa, Jonathan brings a network-level view of fraud prevention, drawing connections between policy, product design, and merchant impact. His posts range from unpacking account takeover blind spots to dissecting why raw fraud volume stats can be misleading, and from examining telecomโs role in scams to explaining the trade-offs in APP fraud liability.
While he hasnโt posted much in the past year, his archive is full of clear, grounded thinking that still applies to todayโs fraud and payments challenges. Itโs the kind of content you can read back through and immediately connect to decisions on your own fraud strategy.
3. Kennedy Meda, The House of Fraud
Fraud scheme breakdowns and emerging criminal tactics
Kennedy shares clear, accessible breakdowns of how fraud schemes actually operate, from synthetic identities and refund fraud to emerging โfraud-as-a-serviceโ models.
Leaning on her perspective gained from her work as a Senior Associate and Digital Fraud Strategic at Santander Bank, she writes for The House of Fraud, tracking how tactics spread, how criminals lower the barrier to entry for new fraudsters, and where risk teams often miss the early warning signs. Her posts balance education with practical tips, making them useful whether youโre a fraud analyst or a business leader trying to stay ahead of the next attack.
4. Doriel Abrahams, Forter
Balancing fraud prevention with customer experience
Doriel focuses on the trust layer in eCommerce: how to stop fraud without turning away good customers. At Forter, heโs tackled issues like returns abuse, coupon gaming, and account takeovers, showing how each one impacts both revenue and customer experience. His posts and appearances, including Forterโs What the Fraud? series and Commerce Innovators Podcast, blend technical insight with practical ways merchants can keep approval rates high while staying protected.
5. Simon Marchand, Consultant, Fraud, Identity, & Biometrics
Geolocation, device intelligence, and biometrics in fraud defense
Simon focuses on the practical use of geolocation, device intelligence, and biometrics to block fraud without adding unnecessary friction for customers. He shares how criminals adapt tactics like spoofing GPS or IP data, and what countermeasures still hold up. His updates often detail specific fraud patterns heโs seeing in the field, giving merchants a clearer view of which threats are moving fastest and where to focus defenses.
6. Jeff Otto, Riskified
AI, fraud, and the future of checkout
Jeff serves as Chief Marketing Officer at Riskified (NYSE: RSKD), and heโs becoming a regular voice on how AI is reshaping fraud prevention and payments. In a recent Business Insider feature, Jeff talked about Adaptive Checkout, Riskifiedโs AI-based tool that turns falsely declined transactions into approvals. He also recently co-hosted a video conversation, โAI in Fraud: Good or Evil?โ, exploring how fraudsters exploit AI and how defenders are fighting back. His LinkedIn feed and Riskifiedโs content channels are worth following if you want an informed view of AIโs role in commerce and fraud.
7. Pete Barker, Appris Retail
Data-driven, targeted strategies for retail fraud prevention
Pete leads product for Engage at Appriss Retail, with over 25 years in retail loss prevention, including building the digital loss prevention program at Dickโs Sporting Goodsโฏ.
He writes regularly about how fighting fraud, especially returns abuse, requires precision, not blanket rules. He argues for data-driven, personalized policies that reduce fraud without alienating loyal shoppersโฏ. If return fraud impacts your margins, and you want to avoid turning away honest customers, his takes are worth your time.
8. Arthur Bedel, Connecting the Dots in Payments
Industry-wide payment trends and tokenization strategy
Arthur co-founded Connecting the Dots in Payments, a platform reaching over 100,000 fintech professionals with curated insights and industry trends. He also currently leads revenue strategy at Very Good Security (VGS), a tokenization specialist in payments.
He is deeply embedded with payment industry leaders, able to unpack a range of hot topics like real-world payment challenges, tokenization, and emerging models across fintech and commerce. If you want to connect payments strategy to business execution and understand whatโs coming next, heโs worth following.
9. Dwayne Gefferie, Gefferie
Merchant-focused payment stack optimization and failure recovery
Dwayne has over 20 years of experience in payments, working with major names like Adyen, Facebook, Uber, and Google, and now leads consultancy firm Gefferie to help merchants with modern payment challengesโฏ. On Substack, his Payments Strategy Breakdown delivers weekly deep dives, unpacking merchant-level strategies, the gaps in payment stacks, and how to make failures work in your favorโฏ. One recent post reframes transaction failures not as glitches but as strategy signals and breaks down how to build redundancy, routing logic, and token strategies to recover up to 20โ30% of failed transactions without ripping out your stack.
10. Amanda Mickleburgh, Merchant Risk Council (MRC)
Collaboration and risk management as a growth lever
Amanda is on the Global Board of Directors for the Merchant Risk Council (MRC), a platform she uses effectively to highlight patterns she sees across the merchant community, from emerging fraud tactics to shifts in consumer behavior that affect risk.
She also holds the position of Director of Product Merchant Fraud for ACI Worldwide. Her posts often push for collaboration, showing how sharing data and experiences between merchants can surface solutions faster. She also digs into how fraud prevention can improve conversion, framing risk management as a growth enabler rather than a roadblock.
11. Roenen Ben-Ami, Justt
Automating and optimizing chargeback disputes
Roenen co-founded Justt after more than a decade in the payments industry, where he worked closely with global merchants on risk, operations, and dispute management. That experience gave him a front-row view of how chargebacks impact revenue, customer relationships, and operational efficiency.
As the Chief Risk Officer, he built our product vision from the ground up. Heโs a go-to source on how merchants can stop leaving revenue on the table, especially as friendly fraud surges and chargeback volumes climb. On LinkedIn, Roenen shares multiple posts each week analyzing developments in fraud, payments, and disputes, from shifting network rules to trends in friendly fraud. His podcast interviews focus on giving merchants practical, data-driven ways to protect revenue, control costs, and adapt dispute strategies as the landscape changes. On the Justt blog, he covers topics like new fees shifting chargeback strategy and economics.
12. Marcel van Oost, Connecting the Dots in Fintech
Global fintech news and deal-flow analysis for payments leaders
Marcel, together with Arthur Bedel (previously mentioned) founded Connecting the Dots in Fintech. He sends a daily FinTech newsletter packed with global news, regulatory updates, and deal signals. Skipping the jargon and clickbait he focuses on what matters now.
He breaks down moves like Appleโs alleged payments tech push, the rise of digital rupees, and stablecoin M&A into whatโs actually relevant for merchants, risk teams, and payments leaders. His feed keeps you up to date across developments from any region, so you can connect broader fintech shifts to your business.
13. Rogier Rouppe van der Voort, PCN
Interviews and insights from fintech founders and executives
Rogier hosts the In Check with FinTech podcast, where he interviews FinTech founders and executives about their company, story, market trends and developments, and the future of FinTech in order to bring clarity to payments and risk, from BNPL pitfalls to open banking barriers.
He recently interviewed Justtโs Roenen Ben-Ami, discussing the impact of chargebacks on a business, the $180 billion blindspot of friendly fraud, and how to fight it without having overstaffed teams.
14. Jordan Harris, iHerb & Fraud Boxer
Candid conversations on fraud prevention and payments operations
Jordanโs Fraud Boxer podcast is a straight-talking source of insight for fraud and payments professionals. In addition to being the Senior Director of Fraud Prevention at a multi-billion dollar health and wellness company iHerb, heโs also a host and producer of the popular podcast Fraud Boxer. He and his guests tackle topics like chargebacks, AI fraud, and payment system quirks in a format thatโs candid and useful.
15. Spiros Margaris, Margaris Ventures
Big-picture fintech and AI trends shaping payments
Spiros is a venture capitalist, futurist, and globally ranked fintech and AI influencer, one of the few to earn Onalyticaโs “Triple Crown” (top in fintech, blockchain, and AI) and Refinitivโs #1 global finance influencer title. Heโs backed startups like STCโฏPay and Wefox into unicorn status, created the award-winning โMargaris No.โฏ1 AI Basketโ investment product, and leads AI innovation efforts like Riyadhโs AI.M Accelerator.
Spiros makes sense of AI, regulation, and how fintech trends shape the payments ecosystem. That breadth makes him one to follow when you want to connect big-picture shifts back to merchant strategy.
Bringing It All Together
The people above each offer a distinct perspective on fraud, chargebacks, and payments. Some focus on the technical side of stopping fraud, others on policy, industry trends, or operational strategies. You do not need to follow all of them, but if a particular focus area or style of insight matches what you are looking for, they are worth adding to your feed.
At Justt, we approach chargeback dispute automation with the same intent: to combine deep expertise with practical solutions that fit real-world merchant needs. Staying connected to knowledgeable voices, whether through industry leaders like these or through our own team, helps merchants make informed decisions, protect revenue, and keep their business moving forward.
If youโre interested in learning more about Justt, or chargeback automation, reach out here.
