While there are a number of fraud exists, the application of a little common sense and be careful with your data protected in most cases.
First, companies must offer fantastic competition is likely to follow a bit back. Enough to provide data to add to a list of direct marketing. Or do you want your opinion on something in a market campaign to run,.
Many leaders, of course, an entry fee and hope to do more and cost inputs and the prize pool. Although it is well known for these reasons there is no reason to prevent falls.
However, it is very likely that you will be contacted in any kind of information you provide. Therefore, you should always create an email address for use in open competitions for them. It can also be good to pay for your cell phone number to use.
It is also strongly recommended that you read the terms before all the races. In particular, this causes problems for people taking time. But if you prepare well, you should be very possible.
More than that, given the increasing competition, you can see the areas you need to overcome the other, which can accelerate the process of reading and verifying. And, of course, more to go, the better chance of winning.
A common problem seems to be people in the online competition is out there that has not won. On the other hand he says that actually win these contests and winners must be available to the organizers on request.