Microsoft just changed who gets blamed when things break.The tech giant is overhauling its security leadership, placing greater emphasis on protecting core systems amid accelerating AI adoption, announcing two senior-level moves that place both security and engineering quality under direct CEO oversight.The update resets who owns security execution and raises the bar for how Microsoft measures reliability across its platform.
In a message to employees, CEO Satya Nadella said Hayete Gallot will return to Microsoft as executive vice president of security, while longtime security chief Charlie Bell will move into a role focused on engineering quality across the company.The leadership changes align with Microsoft’s security and quality priorities.What changes inside the security org under new leadership Under the new structure, Microsoft’s security business will report directly to Gallot, consolidating responsibility for product direction, execution, and delivery under a single leader.
Nadella said the existing security leadership team will move under Gallot’s oversight, giving her full accountability for how Microsoft’s security products are built, shipped, and managed across the company.The transition also introduces a new architectural layer.Ales Holecek will take on the role of Chief Architect for Security, reporting to Gallot, with a mandate to more closely align security with Microsoft’s core platforms and agent infrastructure.
Nadella said the security organization will also be folded into Microsoft’s updated operating rhythm, aligning security product cycles with the company’s broader commercial and product execution model.More Microsoft news Inside Microsoft’s Real-Time War Against Cybersecurity Threats Project Ire: Microsoft Tests AI That Autonomously Detects Malware Microsoft Targets ‘Critical AI Talent’ from Meta to Dominate Next AI Breakthroughs Windows 10 Support Ends Soon, Though Extended Security Updates Offers Are Available From scaling organizations to enforcing standards After years spent building and scaling Microsoft’s security organization, Bell is shifting into a narrower, execution-focused role aimed at enforcing engineering standards across the company’s core systems.Nadella said Bell will concentrate on driving consistency, durability, and accountability in how Microsoft’s software is designed and delivered, moving away from day-to-day organizational leadership to focus on quality at the code and systems level.
The role sits within Microsoft’s Quality Excellence Initiative, which Nadella described as a companywide effort to raise engineering rigor as products operate at a global scale.Bell will continue reporting directly to the CEO and will work closely with senior engineering leaders, including Scott Guthrie and Mala Anand, as Microsoft formalizes quality as a standalone priority together with security.A structural shift in how Microsoft manages risk These changes place security operations and engineering quality under a single governance structure that reports directly to the CEO, tightening Microsoft’s oversight of risk across its platforms.
Nadella described security and quality as areas that must advance in parallel as the company’s products operate at greater complexity.The structure makes reliability an explicit leadership responsibility.With security ownership paired with dedicated quality oversight, Microsoft is setting clear expectations for how risk, resilience, and engineering discipline are managed as its platforms continue to expand.
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