#usual Blockchain Security Team BlockSecTeam reported that its Phalcon system detected that the Usual protocol was attacked by hackers, and the protocol has been suspended. Security researcher tonykebot analyzed that the attack originated from the VaultRouter contract of Usual being exploited, allowing USD0++ to be exchanged for USD0 at a 1:1 ratio, resulting in arbitrage profits. The attack involved approximately 18.99 million USD0++, equivalent to about 19.43 million USD0. Those holding #USUAL should quickly pay attention to risk avoidance; this project is truly going through a tumultuous time, not only being unpegged but also being attacked.