Usual: Encountered a $43000 arbitrage attack, user funds were not affected, and the core protocol was not suspended

Usual stated on the X platform regarding a security incident that a USD0++investment vault of Usual was subjected to an arbitrage attack worth $43000. The attacker exploited an upper limit method of unpacking USD0++into USD0 and depositing it into an investment fund for abuse. No user funds have been affected or lost, and the Usual core protocol has not been suspended. The affected vault will soon be reopened.