Before everything else, here is a fact: casino games came about with most of the odds lying in the casinos' favor. So, when more people gamble at one particular casino for longer amounts of time, that casino will end up making more money as time goes by. Therefore, bigger casinos - whether you have to walk into them on foot or join them on the Internet - have no reason to try and cheat you since the odds are already on their side.
Keep in mind that larger online gaming companies are usually much more reliable overall as well, as they tend to have different and robust deposits available to its players. Checks, credit cards and bank drafts would be some of the common deposit methods today, but there are some third party deposit providers that bigger companies use as well, like Moneybookers and eWallet.
When it comes to online casino games played against other real players instead of against the online casino itself, the possibility of cheating is always there. Because humans are the way they are, this simply cannot be avoided. However, this does not apply only to the virtual world. In fact, poker games have seen more cheating before the widespread usage of Internet than during it, and the casino will have no reason to cheat you at this game, because they will still get the same monetary amount from the pot, no matter whether you win or lose.
Casinos will even go through different kinds of hassle to protect you since protecting you will, in turn, protect their entire business. You need to know that online casino security nowadays is simply excellent, so there is no need to worry about other players marking decks or manipulating cards in any way. Plus, online casinos tend to monitor each player's IP address, so that various players cannot play in collusion, even if they wanted to.
As with any other financial matters that need to be dealt with on the World Wide Web, financial matters at online casinos need to be handled with the utmost diligence. When it comes to traditional and live casino gaming, the majority of people feel quite safe spending their money. However, when away from the bigger Las Vegas casinos, some people may feel a bit uncomfortable spending larger amounts of money. This is because people tend to trust big companies that own big Las Vegas casinos - and rightfully so. The same thing goes on online. So, if you are worried about online gambling, then you can take some big-time online companies into consideration, which have RNGs (random number generators) that were tested by other unaffiliated, individual and independent parties.
Even though individual players could win some money at online casinos, the overall scope and mathematics ensure that the casino will always come out as the winner. To be safe and make sure that you do not get rushed as you play anyway, it would still be smart to do some research on the best online casinos out there.