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Google security engineer arrested for insider trading on Polymarket using confidential search traffic data. He made over $1 million betting on events he knew the outcome of because he had access to Google's internal data.
The play looked smart. It was wire fraud.
Here is the mechanism. Google tracks search volume for every query in real time. Election interest, product launches, cultural moments. That data is a direct signal of what prediction markets will price next. Spagnuolo had access. He used it.
This matters for stock watchers because the same logic applies to earnings, product announcements, and regulatory shifts. If a Google employee can trade on search data before the public sees it, anyone with inside access to signals can. The SEC and CFTC are watching Polymarket for exactly this.
Prediction markets are not a regulatory loophole. They are a new frontier for enforcement. The game changed the moment prosecutors showed they could trace trades back to privileged data.
https://www.wired.com/story/google-employee-accused-of-polymarket-one-million/