PaperTrade tightens controls after manipulation attempts on Hyperliquid BBO

PaperTrade has acknowledged reports of manipulation attempts on Hyperliquid ’s best-bid/offer (BBO) used for synthetic execution. The incident involves attempts to shift Hyperliquid’s ETH quotes, impacting the reference prices used by PaperTrade for its BTC and ETH execution. PaperTrade has responded by tightening open-interest limits on-chain and through relayers. The situation highlights concerns over PaperTrade’s reliance on external price feeds and its exposure controls, although there is no indication of a breach in Hyperliquid’s native system. Market participants will closely monitor any further measures PaperTrade implements to enhance security and control.