Elon Musk's X, formerly Twitter, granted subscription perks to designated terrorist groups and others barred from operating in the US, according to campaigners.
The Tech Transparency Project (TTP) found X had granted blue check marks to accounts tied to Hezbollah members, among others.
For $8 (£6.40) a month, a tick allows longer posts and better promotion.
X removed some ticks after the report, saying its security was "robust".
Mr Musk's decision to charge for check marks was one of the most controversial changes he made after he bought Twitter in 2022, with critics saying the move would make issues of disinformation worse, opening the platform to impersonators.
The badge was previously free, meant to indicate that the social media platform had verified the identity behind the account.
Many of the recipients were journalists, as well as world leaders and celebrities.
Related Coverage
AllSides Picks
Headline Roundup
NYC Schools Ban Generative AI for Students Through Eighth Grade
September 2nd, 2026
Headline Roundup
X Says Chinese Bot Accounts Are Pushing Back Against Data Centers
August 30th, 2026
Recommended Reading
When Americans Are Afraid of the Future
Dan Schnur
August 31st, 2026
Story of the Week
Meta Settles with 29 States
AllSides Staff
August 27th, 2026