( CNN ) -- Here 's a real shocker : Teens are better than their parents at using the Internet , and are likely to hide some of their online behaviors from them . That news comes from a 2,017-person survey funded by the online security software maker McAfee , which is pushing a product that helps parents monitor their kids online . Seventy percent of teens `` hide their online behavior '' from parents , according to the report , which was released Monday . That 's up from 45 % in 2010 , the group says . These hidden behaviors include some things you might expect -- such as accessing violent ( 43 % ) or pornographic ( 32 % ) content online -- but also a few surprises . Fifteen percent of teens have hacked into social networks ; 9 % have hacked into e-mail accounts ; 12 % have met face to face with a person he or she met on the Internet ; and 16 % of teens surveyed said they had used their phones to cheat on tests at school . McAfee said parents are often unaware of these behaviors . Facebook quietly unveils 'stalking app ' `` Parents , you must stay in-the-know , '' McAfee 's Robert Siciliano wrote in a blog post . `` Since your teens have grown up in an online world , they may be more online savvy than their parents , but you ca n't give up . You must challenge yourselves to become familiar with the complexities of the teen online universe and stay educated on the various devices your teens are using to go online . `` As a parent of two young girls , I proactively participate in their online activities and talk to them about the 'rules of the road ' for the Internet . I 'm hoping that this report opens the eyes of parents to become more involved and also consider using technology such as McAfee Safe Eyes to protect their kids online . '' There 's the product pitch . McAfee Safe Eyes , like similar products from other security companies , lets parents spy on their kids ' online behaviors and block certain websites . According to an online description of the product , Safe Eyes lets parents log the social-media posts and instant message conversations of their children . [ Update : the pitch for McAfee Safe Eyes has since been removed from the blog post. ] . Nearly half of parents install some sort of online controls , the survey said . Forty-four percent know their teens ' passwords , and one in 10 uses a location-monitoring device . Not everyone advocates that approach to teen online security , however . `` We do n't think it 's a good idea for parents to spy on their kids surreptitiously , because eventually they 're going to find something they have to confront them about , and it 's going to destroy the other lines of communication , '' Justin Patchin , a criminal justice professor and co-director of the Cyberbullying Research Center , told CNN in 2010 . In the report , McAfee also encourages parents to be upfront with their children if they decide to monitor their behaviors . `` Half of teens say they would think twice about their online activities if they knew parents were watching , '' the report said . The McAfee-funded report , which was carried out by the research company TRU , surveyed 1,013 parents and 1,004 teens between the ages of 13 and 17 . The interviews were conducted online in May . The report , titled `` The digital divide : How the online behavior of teens is getting past parents '' ( PDF ) , also includes a list of the `` top 10 ways teens are fooling their parents . '' Here 's the list , with the percentage of teens who said they engaged in these behaviors , according to the survey results : . 1 . Clear browser history ( 53 % ) 2 . Close/minimize browser when parent walked in ( 46 % ) 3 . Hide or delete IMs or videos ( 34 % ) 4 . Lie or omit details about online activities ( 23 % ) 5 . Use a computer your parents do n't check ( 23 % ) 6 . Use an Internet-enabled mobile device ( 21 % ) 7 . Use privacy settings to make certain content viewable only by friends ( 20 % ) 8 . Use private browsing modes ( 20 % ) 9 . Create private e-mail address unknown to parents ( 15 % ) 10 . Create duplicate/fake social network profiles ( 9 % ) What do you think of the results ? Let us know in the comments section .
Teens hiding online behavior from parents has risen from 45 % in 2010 , survey says . Score: 6 Clearing browser history is the most common way teens hide activity .