tech
February 4, 2026
Microsoft brings back executive Hayete Gallot to run cybersecurity, as Charlie Bell takes new role
Under Charlie Bell, Microsoft's cybersecurity business grew, but the company also dealt with the fallout from cyberattacks.
TL;DR
- Charlie Bell is moving from a top security leadership role to an individual contributor position focused on engineering quality.
- Hayete Gallot is returning to Microsoft to lead the company's security operations after a previous role at Google.
- The leadership changes come amid investor concerns about generative AI's impact on software companies and a slower-than-expected growth rate for Microsoft's Azure.
- Bell's tenure included managing the fallout from significant cyberattacks, such as a breach of U.S. government email accounts by China.
- Ales Holecek will become chief architect for security, reporting to Gallot.
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