Youtube Security Update To Make Older Unlisted Videos Private Next Month
https://blog.youtubeYouTube has stated that beginning July 23, 2021, any Unlisted videos published before to 2017 will be made Private.
If you have an Unlisted video, you’ll have to choose between opting out of the change, making your Unlisted video public, or re-uploading your Unlisted video via the new process.