If an FBI agent appeared at your door, flashed a badge and said she had a few questions for you, would you comply? Would you ask to see the badge again. Would you know what an actual badge should look like?
Those badges, diplomas on the wall and other credentials can be easily faked. We'll tell you how and what you can do to protect yourself. I'm qualified to do it. I have a PhD in Philosophy from Springfield University. It says so on the diploma that hangs on my wall.