How a Ukrainian Coder Saved PayPal from Total Collapse

Added: 2026-05-28

[00:00:00]Did you know a Ukrainian immigrant's code saved PayPal [music] from total collapse? Meet Max Levchin, the genius who fled post-Soviet chaos to become one of Silicon Valley's most important figures. In 1998, 23-year-old Max co-founded Confinity with Peter Thiel, but there was a massive problem.

[00:00:17]Criminals were destroying their payment system, stealing millions through fraud.

[00:00:21]PayPal was bleeding money so fast, bankruptcy seemed inevitable. While everyone else panicked, Max locked himself [music] in his apartment for 16-hour coding marathons. He was building something revolutionary, the Gaussian fraud detection [music] algorithm. This wasn't just any code, it was a digital fortress that could spot fraudsters in real time. The system worked. Fraud rates plummeted from devastating to [music] manageable overnight. PayPal survived, eventually selling to eBay for $1.5 billion, but Max wasn't done. He built Slide, which sold for $228 million.

[00:00:55]Then came his masterpiece, [music] Affirm, the buy now, pay later giant that's now worth billions. From escaping Ukraine with nothing to revolutionizing digital payments twice, Max Levchin proved that sometimes the most powerful weapon against chaos is brilliant code.