searchlore

Back to Karine Mellata
This Startup Catches Fraud at Scale
Karine Mellata

This Startup Catches Fraud at Scale

Mar 31, 2026

Key Takeaways


In this episode of Founder Firesides, YC Managing Partner Jared Friedman talks to Karine Mellata, co-founder of Variance (W23), who is coming out of stealth and announcing their $21 million Series A. Variance builds purpose-built AI agents for risk and compliance — automating fraud detection, content review, and identity verification for Fortune 500 companies and platforms like GoFundMe. They discuss why Variance built in the shadows for three years, detecting state-sponsored fraud rings, and the accident that nearly ended the company.

https://www.variance.com/

00:00 – $21M Raise: Coming Out of Stealth
00:49 – The AI That Keeps the Internet Safe
01:28 – Why They Stayed Secret for 3 Years
02:26 – You’ve Used This Without Knowing It
02:57 – How GoFundMe Stops Scams
03:59 – How Scammers Use Big News Events
05:50 – Checking IDs and Businesses Online
07:44 – How the AI Agents Work
09:28 – The Hardest Problem: Bad Data
12:07 – Why This Only Works Now
14:22 – Catching Organized Fraud Groups
16:26 – Tiny Team, Huge Output
20:18 – How They Met at Apple
22:24 – Getting Their First Customer
24:57 – Recovering from Getting Hit by a Truck
29:36 – Sticking to One Big Idea

Apply to Y Combinator: https://www.ycombinator.com/apply
Work at a startup: https://www.ycombinator.com/jobs

Video