The account was compromised over the weekend and instead of the usual posts of encouragement and kindness, Elmo’s 650,000 followers were given antisemitic threats.

Sesame Workshop, the production company behind “Sesame Street,” said Monday morning that it was working to regain “control” of Elmo’s X account after a hacker accessed the page.

Sesame Workshop was trying to regain full control over its Elmo account on the X platform Monday after a hacker gained access and posted a string of racist and antisemitic messages. “Elmo’s X ...