Although the site does not seem to have viruses or anything, but their method of premium currency changed from the last few years.  Nexon seems to be getting more and more into the Pay2Win style of games with really ruins almost ALL of their games for me.  Also, Dirty Bomb's "anti-hacker measures" has a feature of which the player's PC data and some internet data gets sent to the server which may invade your privacy. Although Nexon has changed, they've made some pretty suspicious things, at least of what I heard.

No bad advertisements and no scams when buying NX for real cash(A currency in game) but it has the WORST costumer service ever! I play maple-story and they take years to reply to your questions and they usually get automatically closed! More than 100 accounts are getting hacked daily! Great games and child friendly but EXTREMELY bad costumer service.....

For free games, these guys do far better than their competition. Depending on your viewpoint, this could be good or bad. A few years ago, their customer service was abysmal and their "fan service" absolutely nonexistant. Now, it seems they've at least STARTED to learn from their mistakes and have begun to cater more towards their free features in their games. One fair point of advice: Do NOT start buying their cash items if you value your hard-earned money. You will eventually be lured into buying more and more items in order to stay on top of your opponents. Granted, that is the entire point of their business model, but your wallet will suffer because of it. Overall, these guys are totally trustworthy, but their business model works a bit too well if you ask me.

This game will ruin your life from spending all your money on the real life money they offer.This game is filled with horrible mean people that rued,perverted,and sick.I would never ever in my life recommend this site to everyone because it can lead to stealing, depression,wasting of money,and these games might lead to child/teenagers to fail school from always playing these games and not doing homework/going to work.This games are horrible because they ruin your life forever and they give bad memories if you have played.All in all, these games are life ruining so please listen to me and do not play thee games.