A wallet reportedly purchased the memecoin '4' before a tweet by CZ, Binance's CEO, and has now amassed a value of $1.5 million, according to Bubblemaps. The BNBChain's official Twitter account was hacked and used to promote the memecoin '4'. After regaining control, CZ mocked the hackers for only making $4,000 and praised the community for taking over the memecoin.