Alleged screenshots of internal Twitter tools suggest platform maintains user ‘blacklists’ despite denying practice for years

Leaked screenshots of Twitter’s internal systems indicate that the company keeps “blacklists” for users it deems undesirable, according to multiple reports. The leaks followed the largest hack in the platform’s history.

The images, said to be screencaps of an internal control panel on the site’s back end, appear to show that Twitter marks user accounts with tags such as “Trends Blacklist,”“Search Blacklist” and “Compromised.” The visuals were first reported by Motherboard on Wednesday evening, soon followed up by CNet, who also said it had obtained copies of the images.

Citing privacy violations, Twitter has reportedly scrambled to cleanse the site of posts featuring the screenshots.

Responding to the leaked images, the company claimed that it has always been upfront about the fact that tweets and accounts are monitored for “quality” and can be prevented from trending if found to be creating a “bad search experience.” However, critics noted that the screenshots suggest that this process can be done manually, opening the door to potential abuse.

The platform has long maintained that it does not ‘shadow ban’ users – or limit the reach of accounts in lieu of an explicit ban – but the allegedly leaked images have generated a whirlwind of speculation that it does engage in the practice after all. Conservative users in particular were up in arms over the reports, with right-leaning pundit Mike Cernovich accusing the company of editing content “manually” to weed out certain political viewpoints.

A company blog post in 2018 sought to assuage concerns and “[set] the record straight” on whether it engages in shadow banning, insisting flat-out “we do not,” however a subsequent rule change last December effectively wrote the practice into the platform’s policies. Under the new terms, Twitter said it retained the right to “limit distribution or visibility of any content on the service,” though left it unclear exactly how it would accomplish that or when and where such limitations would be imposed.

The alleged screencaps emerged hours after the largest hack in Twitter’s history, sweeping up billionaires, celebrities, politicians and corporations in what appeared to be a far-reaching cryptocurrency scam. While Twitter remained largely mum on the incident throughout most of Wednesday, later in the evening the company confirmed that its internal systems were indeed targeted in the massive breach, allowing the hackers to hijack a large number of accounts simultaneously through an employees-only control panel – presumably the same one featured in the screenshots.

“We detected what we believe to be a coordinated social engineering attack by people who successfully targeted some of our employees with access to internal systems and tools,” the company said in a statement, noting that it is still investigating what other illicit access the hackers might have had.

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