today one has to be very careful when choosing which cryptocurrency to invest in, there are so many scammers around. it is good for use to verify the site or trading  company before you commit to doing business with them, read reviews about them and use other ways to check their authenticity. also try to invest only in the popular coins, these ones have been on the market for longer than the new ones and have been tried and tested. also read th information on these forums to get more understanding on a certain topic you are interested in.