According to the latest development, fast food giant McDonald's announced on its official Instagram account that it has launched an altcoin called GRIMACE and launched it on the Solana network.
However, the altcoin in question appears to have been created on the memecoin platform pumpfun. In such cases, it is also necessary to consider the possibility of social media accounts being hacked.

Instagram post shared by McDonald's.
*This is not investment advice.