Gate News, March 23 — Prediction market platform Polymarket announced updates to its DeFi platform and market integrity rules for the CFTC-regulated U.S. exchange, along with the launch of a dedicated market integrity page. The updated rules specify three types of prohibited insider trading activities: trading using stolen confidential information, trading based on insider information improperly conveyed by others, and trading related contracts by individuals who can influence event outcomes. Additionally, both platforms prohibit all forms of fraud and market manipulation, including false order placement, wash trading, fictitious trades, self-trading, front-running, and other disruptive market behaviors. On the monitoring front, DeFi platforms leverage on-chain transparency of the Polygon blockchain for multi-layer monitoring, while Polymarket US employs a three-tier monitoring system through professional trading surveillance firms, real-time control dashboards, and a regulatory service agreement with the National Futures Association (NFA). Violators may face account bans, fines, or legal action.