This is a bit of a tricky question to answer, but I'll try my best to explain it.
Essentially, I'm trying to figure out the legality of a scam designed to coerce victims into deleting their YouTube channel (and from what I've heard the scam might involve transferring the channel to someone else) under the guise that the person sending the message is "YouTube Support". The act may not necessarily be illegal, but surely claiming to be YouTube Support with your icon as the Google logo must be illegal in some regard?
I'm torn to be honest, because the simple act of claiming to be support shouldn't itself be illegal. YouTube Support is not a valid trademark, but the Google logo is. I'm not a lawyer, so I figured I would get a more clear answer here. From what I know, U.S. trademark is designed to provide general protection that overlaps (i.e. Blizzard Games wouldn't be a valid trademark because the purpose of the Blizzard trademark is to provide protection to a company that creates games and the average person wouldn't be able to discern between the Blizzard that creates Overwatch vs. the Blizzard Games that creates Underclock, but Blizzard Refrigerators would be), but that's not the case with claiming to be YouTube support.