I was trying to buy NEO coins but I didn't know it's not an ethereum based tokens. I searched for NEO contract address on google and I got one, not knowing it's a fake NEO created by a scammer. I used the contract address on forkdelta and it brought the fake NEO with the price slightly different from the original NEO being traded at bitforex. I was about buying before I sensed that something was wrong cos there was neither a trade history nor any buy orders; only sell orders. That was how I got saved from being scammed. Please be weary of these people especially if you're a newbie in crypto world.
Better buy NEO on a specific exchange rather than a doubtful seller. The more secure technology is the more smarter the hackers. The people should be aware of anything that is ambiguous things they see, an example is your "fake" NEO that you almost bought from scammer. Lucky for someone like you that you escaped that modus. Newcomers on crypto world should be aware of contract addresses to know the altcoin's legitimacy. It is also sad that these kinds of things are mostly ignored but I think it is better to spread awareness rather than keeping it secret. Or the best way is you just buy on legit exchanges to prevent those things, NEO is available in most exchanges.