Microsoft restructures its security division with a focus on AI.

      Microsoft is the largest vendor of cybersecurity software globally. Now, it is revamping that sector, focusing on AI.

      This transformation involves introducing more AI security tools, reducing reliance on traditional products, and consolidating engineering teams. According to The Information, the overhaul has already resulted in the loss of several hundred jobs.

      The motivations behind these changes are rooted in fear and finance. Companies are concerned about AI-driven cyberattacks, leading to increased security spending that is now largely directed toward Anthropic and OpenAI. Microsoft aims to reclaim this business.

      A new leader, a fresh start

      Hayete Gallot is at the forefront of these transformations. She took charge of Microsoft’s security division in February and reports directly to Satya Nadella. Previously, she worked at Microsoft for 15 years and later managed customer experience at Google Cloud.

      Her message to employees was straightforward. “The entire industry is being reimagined from the ground up,” she stated in an internal memo, as reported by PYMNTS. “We made those decisions a few months ago. Now it's time to implement.” She has also removed several senior leaders.

      What is being developed

      The emphasis is on tools that combat AI using AI. Gallot is advocating for Security Copilot, software designed to identify flaws in code, and products that allow companies to monitor their AI agents for any issues.

      The latter is particularly significant. As businesses increasingly delegate tasks to autonomous agents, each of these agents presents a new entry point for attackers. Microsoft aims to provide the necessary safeguards.

      The initiative is already apparent. On the same day that Microsoft integrated its threat-intelligence tools into a unified Defender portal and introduced new expert-led Defender services, the announcement was made.

      Targeting AI laboratories

      The strategic retreat from older products is intentional. Microsoft positions itself as a more affordable and secure all-in-one solution compared to AI labs, training its sales team to communicate this message.

      This approach is particularly relevant now. AI is capable of identifying software vulnerabilities faster than human experts, as demonstrated by OpenAI's in-house AI hacker, and Nadella consistently argues that AI is reshaping the entire industry. Microsoft is betting it can offer a solution more swiftly than competitors can propagate problems.

      Published July 16, 2026 - 3:36 pm UTC

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