To determine if a cryptocurrency is legit, you should do some research on its background and the technology behind it. Look into the development team behind it, what they are trying to achieve and how they plan to accomplish it. Research the website and whitepaper closely to make sure the information makes sense. You should also look for any red flags like weak security, market manipulation and other signs of potential fraud. Finally, read reviews and discussion posts from reputable sources to get a better idea of the people’s opinion on the currency.