How stupid for those are following mcafee's tweet just give an advice to buy and buy more various altcoin without any explanation about that, basically that's just like telling another to buy shitcoin and then pump it for the hackers. Glad to see the McAfee account has back again.
For those are following it just try to do your own research about that rather than follow the hacker.
But a lot of people are spreading it in here.