"Twitter tweeted an update to its rules changing what users can and can’t share on the site. Starting now, if you share an image or video of someone without their consent, the company can take it down — unless it’s in the public interest to leave it up."
From WaPo [1] on what the rule in the title is (it's paywalled).
[1]https://www.washingtonpost.com/technology/2021/12/01/twitter...