The makers of Sesame Street say hackers were behind “disgusting” antisemitic messages that appeared on Elmo’s X account.
A string of posts appeared on the verified page, which has about 650,000 followers, on Sunday.
Other messages attacked US President Donald Trump and called for files relating to sex offender Jeffrey Epstein to be released.
Sesame Workshop, the non-profit organisation that makes the children’s programme, said an “unknown hacker” had gained access to the account.
“Elmo’s X account was compromised by an unknown hacker who posted disgusting messages, including antisemitic and racist posts,” a spokesperson said.
“We are working to restore full control of the account.”
‘Release the files’
The antisemitic posts appeared on Elmo’s account in quick succession.
They also made derogatory comments about Trump and allegations about his connections to Jeffrey Epstein.
The disgraced financier had powerful connections and died in prison in 2019 while awaiting trial for sex trafficking charges.
One of Elmo’s posts called on Trump to “RELEASE THE FILES” following an announcement last week that the US Department of Justice and FBI found no evidence of a list that could implicate high-profile associates of Epstein’s.
His death is at the centre of a number of conspiracy theories and while he was campaigning to be elected, Trump had promised to publish files about what happened.
The posts on Elmo’s account come after X’s boss, Linda Yaccarino, stepped down as the platform faced criticism for an increase in antisemitic content.
Billionaire Elon Musk, who owns X, also had to explain last week after its AI chatbot, Grok, praised Adolf Hitler.
The UK’s Action Fraud said there was a rise in social and email accounts being hacked last year, with more than 35,000 reports.
It advised users to set up two-step verification alongside a strong, unique password.
Elmo is one of Sesame Street’s best-known characters and has been teaching children about kindness since the 1980s.
