A U.S. judge's ruling that Google has illegal monopolies in ad technology sets up the possibility of U.S. prosecutors seeking a breakup. Here's what the case involves and what Google owner Alphabet faces from here.

"The U.S. Department of Justice is focused on breaking up all of Google's monopolies and it does not look like they are going to let up. The best course of action would be for Goo

A federal judge in Virginia has ruled that Google’s advertising technology unit is an illegal monopoly, handing the tech giant its second major antitrust loss.