Google Faces Antitrust Probe in Europe. Microsoft and OpenAI: A Partnership in Turmoil. Google Faces Antitrust Probe in Europe The European Commission has made a formal antitrust complaint against Google and its ad business. In a preliminary opinion, the regulator says Google has abused its dominant position in the digital advertising market by giving its own online advertising services an unfair advantage over those of its rivals. The Commission is proposing that Google should be forced to sell off parts of its business, including its ad-tech stack, which is a suite of software and data that helps advertisers target their ads more effectively. Google has denied the allegations and said it will contest the case. The case is the latest in a series of antitrust investigations into Google by regulators around the world. If the Commission is successful, it could have a major impact on Google's business and the way that digital advertising is conducted.