At its foundation, plagiarism is the stealing of another person's ideas and passing them off as your own. When writing a paper or completing a project for school, it is important that you cite your sources. Most plagiarism concerns can be avoided by following proper citation guidelines.
How to Recognize Plagiarism, Tutorials and Tests (Indiana University)
In the internet age it is more important now than ever to critically examine the source of your information. The reality is, anybody can post just about anything online so you need to make sure the information you're getting is the good stuff. Below are some resources that you can use to ensure you're not taken in by "fake news".
The fact checker's guide to manipulated video
Check out this article from the Washington Post detailing how video can be manipulated to mislead viewers.