The warning was issued by European Commissioner for the Internal Market, Thierry Breton.
Breton is demanding that Musk ends his free speech agenda and increases the number of Twitter censors in the EU.
Since Musk took over the social media company, he has fired around half of the workforce.
Much of the cull has been employees in the “Trust and Safety team” which oversaw Twitter’s censorship.
Breton issued a warning to Musk directly, saying that Europe “will not have a trembling hand.”
He added that Musk “knows the European position perfectly.”
“He is in the process of reducing a certain number of moderators, but he will have to increase them in Europe,” Breton gloated in an interview with Franceinfo.
“He will have to open his algorithms.
“We will have control, we will have access, people will no longer be able to [just] say anything.”
“Hate speech is over,” Breton declared, referring to the vague term used by the Left to describe language that conflicts with their own political beliefs.
Breton said he had suggested establishing a “working relationship” with Twitter’s new owner to discuss Europe’s demands from the social media platform.
“He knows perfectly well what the conditions are for Twitter to continue operating in Europe,” Breton said.
Shortly after Musk took over the platform, Breton warned that Twitter will have to “fly by our rules.”