A rare bid to break up Alphabet’s Google is one of the options being considered by the U.S. Justice Department after a landmark court ruling found that the company monopolized the online search market, according to people with knowledge of the deliberations.

The move would be Washington’s first push to dismantle a company for illegal monopolization since unsuccessful efforts to break up Microsoft two decades ago. Less severe options include forcing Google to share more data with competitors and measures to prevent it from gaining an unfair advantage in artificial intelligence products, said the people, who asked not to be identified discussing private conversations.

Regardless, the U.S. government will likely seek a ban on the type of exclusive contracts that were at the center of its case against Google. If the Justice Department pushes ahead with a breakup plan, the most likely units for divestment are the Android operating system and Google’s web browser Chrome, said the people. Officials are also looking at trying to force a possible sale of AdWords, the platform the company uses to sell text advertising, one of the people said.