After leaked emails showed Twitter CEO Dick Costolo admitting that the social media site isn’t all that great at dealing with abuse and trolls, and in fact has “sucked at it for years,” the company included a new bit in its terms of service on Wednesday that outlaws revenge porn.

“You may not post intimate photos or videos that were taken or distributed without the subject’s consent,” Twitter says in its update to the Twitter Rules under “Private Information.”

So-called revenge porn is when someone else puts nude photos or videos online without the consent of the subject, and it’s an issue many sites have been dealing with. Reddit also banned revenge porn earlier this week with an update to its privacy police that bans the posting of nude and sexual images without the consent of the subject.

Along with its prevalence on social media, sites that existed solely to publish such content are also falling under the baleful gaze of the law: The operator of one now-defunct site dedicated to revenge porn called “isanybodydown.com” was the focus of a complaint from the Federal Trade Commission, which alleges he used deception to acquire nude content to post online, among other things.

He settled with the FTC and was ordered to destroy all images and personal contact information he collected from victims and people who knew them.

In another similar case recently, the operator of yougotposted.com was found guilty of identity theft and extortion for running the site, which included thousands of sexually explicit images, mostly of women, that were published by anonymous users without the subjects’ consent or knowledge. He’s facing up to 20 years in jail as a result.

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