Usual Official announced on social media that on May 27, one of Usuals' USD0++ investment vaults encountered a $43,000 arbitration vulnerability, which exploited a method that unpacks USD0++ into a cap of USD0 when depositing into the investment fund.
User funds were not affected, there were no financial losses, and the Usual Core protocol was not paused. The affected vault will be restored soon.
It's not easy on-chain
