By default YouTube displays a list of videos you have liked on your video channel. This may raise privacy concerns if you do not want people, potentially anyone with access to the Internet, to see the videos you have liked.
To hide liked videos from the public:
- Go to YouTube
- Click on your user icon at the top right of the window then click on the cog icon (YouTube settings)
- Click ‘Privacy’ and place a tick next to ‘Keep all my Liked Videos and Liked Playlists private’
- While you’re there, I suggest you also tick ‘Keep all my subscriptions private’
- Click ‘Save’ to save the changes.