Microsoft Warns: Using Someone Else's AI Tool Leaks Your Company Secrets

On July 13, Microsoft's Satya Nadella published a warning: when companies use proprietary AI tools, the interactions—every question asked, every correction made—get fed into the vendor's training systems, potentially leaking institutional knowledge to competitors. Vendors train their models freely on public information but prevent customers from adapting outputs. Nadella suggests companies protect themselves by owning their data and building flexible systems that can switch between AI tools.