Description of the event: An attacker exploited a logic flaw in MALT’s swap function. With negligible input they triggered an external rebalanceHook that pulled DAI from the protocol’s Capital Source into the same pool. The swap then checked its invariant against the post-hook balances and treated the treasury-funded DAI as caller-supplied funds, allowing a disproportionate MALT withdrawal and a loss of about $ 72,000.