Seems to have begun testing to limit users who share their account passwords with others.
An overseas user shares a photo on Twitter that he encounters with a login restriction message. In the image, “If you do not live with the owner of this account, you will need your own account to continue watching（If you don’t live with the owner of this account, you need your own account to keep watching）」「Is this your account?We will send you an authorization code(Is this your account? We’ll send you a verification code) “is displayed.
A Netflix spokesman told The Streamable, “This test is to make sure you have Netflix account users.” At the moment, it is being implemented only for TV devices. The reported screen points to whether the user lives with the account owner, but it’s unclear if the same IP address is required.
The Netflix Terms of Service stipulate that “The Netflix Services and the content viewed through them shall be for your personal, non-commercial use only and may not be shared with anyone other than your home.” (Article 4, Paragraph 2, updated on January 1, 2021).
Netflix has traditionally been generous with home account sharing. “I’m grateful if you enjoy Netflix together on the couch, so it doesn’t matter if you have two or ten,” said CEO Reed Hastings. However, since it was actually possible to share accounts with non-family members, it seems that this restriction was introduced to some users on a trial basis. According to a survey, 33% of Netflix users share passwords with one or more people.