Popular dating sites and apps widely collect information from their users for match-making are also deploying that info for advertising. Axios Technology Reporter David McCabe explains what this means for data security and protection.

"The implications are wide-ranging," says McCabe. "The kind of data they could collect is very valuable."

According to a recent poll by SurveyMonkey and Axios, 37 percent of users are comfortable providing personal info to dating sites, compared to 20 percent who are not comfortable at all.