I do not have an account on Coinmarketcap but this is considered a piece of big news and a cause of concern, Coinmarketcap,  is a company owned by Binance and there are millions of users if they can hack a company owned by the biggest exchange in the industry, even small companies are at risk, those who have an account on Coinmarketcap should educate themselves on how to protect themselves on phishing emails, hackers are going to use those emails.