-It is ALWAYS ok to tell a person you are going to verify the information yourself and then hang up.

-Closely watch for unfamiliar transactions on credit/debit cards and in bank accounts. 

-Closely check sender email addresses to insure they are legitimate.

-Avoid clicking on links in emails or calling numbers in those emails if you are not familiar with them.

-Cryptocurrency scams are very difficult for investigators to trace to their source.

To report a crime like this call your local law enforcement agency.