More than half of consumers admit to sharing personal information through social media that can make them victims of identity theft and other scams, according to a new survey from Visa.

Dan Kitwood, Getty Images

Nearly half shared their birthdate, which isn't too dangerous, but close to 30 percent provided their phone number. Seven percent even posted their social security number.

This personal data is the type that cybercriminals crave, so social media is increasingly becoming a dream come true for them.

Remember - if a social media site asks for personal information to create a profile, you aren't forced to provide an answer.

Maria Joyce, Managing Director of The Protocol School of New Jersey, said social media is used to build relationships, but everyone must be mindful of their boundaries.

"We are so used to posting and emailing that we don't have the face-to-face, and so we don't understand the consequences of what we're posting," Joyce said.

She noted some sites automatically disclose one's location when a post is made. A device's GPS capability can be turned off to avoid this type of tracking.