Insights from Shoptalk 2026: How agents are changing retail

Stripe Radar detects 6.2x more abusive free trials on Stripe's network from November 2025 to February 2026, targeting AI companies with expensive compute resources. To mitigate this, Stripe Radar now prevents free trial abuse with 90% accuracy, blocking high-risk payments and analyzing fraud patterns across device, payment history, and card characteristics. In the first 2 months, Radar blocked over 550,000 free trials, preventing an estimated $4.4 million in downstream losses from compute costs for four high-growth AI businesses.

Here is a 3-sentence summary of the blog post: Payment leaders at MRC Vegas 2026 converged on the growing threat of automated and sophisticated fraud, prompting a shift to more dynamic, tailored interventions. Successes in fraud strategy involve dynamic authentication based on user intent, embedding fraud detection in agentic transactions, and investing in multilayered identity verification to combat deepfakes and synthetic identities. Companies like Airbnb, Ashley Furniture, and H&R Block are using advanced technologies, such as adaptive 3DS and Shared Payment Tokens, to stay ahead of evolving fraud patterns and minimize false positives.