Following the launch of the Worldcoin human identity verification token, several fake accounts on the social media platform formerly known as Twitter were promoting malicious links to their followers. Despite Twitter's recent rebranding to 'X', the platform has not changed its policy of purchasing or displaying differently colored check marks based on the type of account.

The Worldcoin project, which aims to distinguish real people from bots through retinal scans, has seen numerous impersonators on Twitter, with at least seven fake accounts displaying a blue checkmark. Twitter has since suspended many of these fake accounts, but users are advised to be cautious of scammers posing as Worldcoin.