NEW YORK (CBSNewYork) – If you think you know what your kids look at on the Internet, you’re probably wrong.

A new study shows 70 percent of teenagers hide their online activities from their parents.

Sree Sreenivasan from our partner CNET stopped by the CBS 2 studios with some ideas of what parents can do to protect their kids while they surf the web.

For more information, watch the clip below, and check out these links: NetNannyMobileSpyFootprints


Sree Sreenivasan is CBS2′s technology expert, appearing every Wednesday morning at 6:50 am to discuss ways to save you time, money and aggravation. He is also a social media blogger for CNET News. He is a professor and Dean of Student Affairs at Columbia University’s Graduate School of Journalism. You can find him onTwitter and Facebook  and on his personal siteE-mail your questions with “CBS New York” as the subject line.