According to the original report from Bloomberg, the Federal Trade Commission has initiated a comprehensive antitrust investigation into Microsoft Corporation, incorporating about a year of conducted informal interviews with Microsoft's competitors about its business practices. The probe encompasses Microsoft's cloud computing services, software licensing practices, cybersecurity offerings, and AI products. The investigation has now culminated in an extensive information request spanning hundreds of pages. FTC chair Lina Khan has authorized this demand for documents, signaling a serious escalation in the agency's oversight of the company. A key focus of the investigation is Microsoft's practice of bundling its popular Office productivity suite and security software with its cloud services.

Critics, including companies like Slack and Zoom, argue that Microsoft's strategy of including Teams video-conferencing software free with Word and Excel creates an unfair competitive advantage. The probe has gained momentum following several cybersecurity incidents involving Microsoft's products. As a major government contractor providing billions in software and cloud services to US agencies, including the Defense Department, Microsoft's security practices have drawn particular attention. The government's Cyber Safety Review Board recently concluded that Microsoft's security culture "requires an overhaul" given the company's role in the technology infrastructure ecosystem. This investigation makes Microsoft the fifth major tech company to face antitrust scrutiny in recent years, joining Amazon, Apple, Meta, and Google. It also represents a return after 25 years to regulatory challenges for Microsoft, which faced a similar antitrust lawsuit in the late 1990s over its Windows operating system and browser bundling practices.