Full Sail, a decentralized exchange and capital-efficient yield protocol on Sui, is shutting down permanently after an attacker drained roughly $91,000 from three vaults on August 29 by exploiting Switchboard oracle controls. Full Sail said the attacker abused Switchboard production code governing who can sign oracle price updates, added a key they controlled to a live oracle, pushed prices to roughly 100 times below market, deposited into the affected vaults, then restored prices to withdraw more than was deposited. The team said the incident was not a Full Sail admin key compromise and that direct liquidity pool positions escaped the attack. Full Sail paused deposits and withdrawals on August 29, later disabled new deposits and liquidity provider reward claims, and shifted pools to withdrawal-only mode by September 2, pledging that remaining protocol-owned liquidity will go to community depositors first while the team covers any shortfall, with claim guides, a detailed incident report, and a reflection on the wind-down still to follow. Switchboard halted related services on Aptos, Sui, IOTA and Movement. Virtue Money separately reported about $455,000 in losses tied to the same incident and said VUSD backing was impaired. As of September 1, Full Sail said Switchboard had not supplied requested technical details or committed compensation, and Mysten Labs declined financial support. Full Sail joins other 2026 DeFi shutdowns after breaches, including Summer.fi after a $6 million Lazy Summer Protocol exploit, Radiant Capital’s DAO exit after earlier losses above $50 million, and the February closures of Step Finance and SolanaFloor; RootData counts 204 crypto projects that shut down, went dark, or entered bankruptcy in 2026.