The internet has given every person with a computer, tablet, smartphone, or any other smart device, the ability to be a journalist. Any person can put information on the internet claiming it to be real. And any person can read that information, believe it, and have it alter the way they perceive the world. Media is no longer filtered through newsrooms and handed out to the public by a select number of journalists and producers from news corporations.
News can be thought of by anyone, created by anyone, produced by anyone, and put into the public sphere by anyone; lending itself to the creation of fake news.
This has altered the flow of information in all aspects of our society and can cause all people to believe ideas that go against the facts. But it also always anyone to dispute anything in the media as fake news. The existence of fake news itself casts an automatic shred of doubt across all media, all news outlets, and the whole internet.