According to ChainCatcher's message and monitoring by Lookonchain, a hacker breached McDonald's Instagram account yesterday and promoted the GRIMACE token. The hacker used 24 internal wallets to purchase 705 million GRIMACE tokens for only 65 SOL, and ultimately sold them for 5202 SOL, making a profit of 5136 SOL, approximately 738,000 USD, with a return of up to 79 times.