Google employee charged with using insider data to rig bets on Polymarket

Michele Spagnuolo, a 36-year-old software engineer at Google, has been charged by the US Department of Justice for allegedly using insider information to manipulate bets on the prediction market Polymarket, resulting in profits of $1.2 million. The charges indicate that Spagnuolo utilized confidential data to place bets on individuals who were expected to be among the most-searched online in 2025.

This case raises significant concerns regarding ethical practices within tech companies, particularly in how employees handle sensitive information. The implications for Google are profound, as it faces scrutiny over its internal data security and the potential for insider trading among its staff.

The incident reflects a growing trend of insider trading allegations within prediction markets, highlighting the need for regulatory oversight. Similar cases, including those involving military personnel, suggest a pattern of exploiting privileged information for financial gain, raising questions about the integrity of such markets and the safeguards in place to prevent abuse.