Check out the headache that this YouTuber went through after getting a copyright warning for music that he'd actually licensed and the video was still private.
www.zdnet.com
This information is especially for NerdZone's content creators to be aware of:
@Geffers
@Retrokomodo
@TheURL
YouTube's Content ID system exists to protect copyright holders from infringement. But does scanning unlisted and private videos go too far? We explore the issue here.
So, this came as quite the surprise. Even though a video I uploaded was marked as "unlisted," within minutes of uploading it, I got hit with a copyright warning.

Warning: Your private YouTube videos aren't 100% private
YouTube's Content ID system exists to protect copyright holders from infringement. But does scanning unlisted and private videos go too far? We explore the issue here.

This information is especially for NerdZone's content creators to be aware of:
@Geffers
@Retrokomodo
@TheURL