MultiChain issued a notice advising that a critical vulnerability affected six cross chain tokens. "If you ever have approved any of these 6 tokens on the Router (WETH, PERI, OMT, WBNB, MATIC, AVAX), please login into https://app.multichain.org/#/approvals to remove any approvals of these 6 tokens asap. Otherwise, your assets will always be at risk. Please do not transfer any of these 6 tokens to your wallet before revoking the approvals. The risk will be eliminated instantly upon revoking approvals."