A federal judge has determined that Google violated antitrust laws by maintaining monopoly power in the advertising technology market. This ruling concludes a two-year legal battle initiated by the U.S. government and eight states. The court will establish a schedule to discuss remedies, which may include the breakup of Google's ad business or behavioral remedies to ensure fair competition. In a related case, another judge found Google guilty of monopolizing the general internet search market. The judge's opinion highlighted the unlawful tying of ad tech components as a key issue.