Microsoft concludes 2025 as the "undisputed leader of the enterprise AI revolution," with its market capitalization nearing $4 trillion, and shares rising approximately 28% throughout the year. The company reported $281.7 billion in revenue and over $100 billion in net income for FY25, solidifying its "AI Cloud" position. Strategic shifts include clarifying intentions regarding its C/C++ codebase migration, now framed as a research effort rather than a full Windows rewrite. Recent cybersecurity warnings impacting Microsoft 365 accounts also emerged.