BTC
Liquid Network Post-Mortem: The Cache Bug Behind a ~4,000 BTC Drain
Summary On September 6, 2026, exploiters created approximately 4,000 unbacked L-BTC and redeemed it through SideSwap for real bitcoin. Liquid and SideSwap reported that their private keys remained secure. The failure was in the software deciding whether the L-BTC was valid. Liquid's incident update The exploiters returned