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Microsoft Reorganizes Security Leadership as Gallot Returns, Bell Shifts to Engineering Quality

The restructure centralizes oversight to rebuild trust after security failures.

Overview

  • Hayete Gallot is rejoining Microsoft from Google Cloud as executive vice president of security, reporting directly to CEO Satya Nadella.
  • Charlie Bell is leaving his security post to focus on engineering quality as an individual contributor, continuing to report to Nadella under the Quality Excellence Initiative.
  • Ales Holecek has been named chief architect for security and will report to Gallot to align security architecture with core platforms and the agent infrastructure.
  • Microsoft is folding security product cycles into its updated operating rhythm, giving Gallot end-to-end accountability for security product direction, execution, and delivery.
  • The moves place security and engineering quality under direct CEO oversight and extend the Secure Future effort launched after high‑profile breaches and external criticism of Microsoft’s security culture.