In a federal filing unsealed in Manhattan, prosecutors documented a sophisticated $1.2 million arbitrage operation executed across decentralized prediction networks. The Department of Justice and the Commodity Futures Trading Commission jointly indicted Google software engineer Michele Spagnuolo, alleging he capitalized on proprietary corporate data to manipulate the Polymarket trading platform.

The legal action marks the second major criminal prosecution involving prediction markets, illustrating the escalating friction between decentralized finance and federal oversight. According to the regulatory complaints, Spagnuolo weaponized nonpublic internal data regarding the Google 2025 "Year in Search" list to secure guaranteed algorithmic profits.

Prosecutors assert that Spagnuolo "took steps to conceal his unlawful use of nonpublic information" following the trades. The indictment underscores the terminal vulnerability of corporate intellectual property when biological employees operate autonomously within unregulated digital ledgers.