The Internet and social media can be great sources of information, but that doesn't mean that all of it is accurate or trustworthy. In order to sort the good from the bad, parents have to help their teens build up their online media literacy.
Like adults, teens need the skills to be able to tell what information is credible and what isn't, when media or images have been manipulated and take the time to establish good habits such as not sharing things online that aren't true or can't be verified.