Microsoft Announces Update to Windows Code Signing Infrastructure Ahead of 2026 Changes

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ITmedia.co.jp
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RobotToday Industry Briefing RobotToday Industry Briefing graphic: a blueprint-style humanoid robot outline with annotations for perception, actuation and mobility, next to the Industry Briefing wordmark. 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RobotToday Industry Briefing

On August 20, 2026, Microsoft announced plans to update its Windows code signing infrastructure due to the expiration of the current certification authority on October 19, 2026. This transition will begin in the coming weeks, with a phased enhancement of code signing expected to continue through 2027, including a shift to post-quantum cryptography standards.

This update is significant as it addresses potential compatibility issues that may arise from fixed certificates and cryptographic methods in applications. Microsoft has urged IT departments to verify the reliability of signatures using standard Windows APIs and to avoid relying on specific certification authorities or certificate details.

Looking ahead, IT administrators are encouraged to ensure that their software sources utilize standard APIs and have plans for post-quantum cryptography compliance. No further timeline was disclosed at the time of publication.

Original report

[ITmedia エンタープライズ] Microsoftが「Windowsコード署名」の更新を発表 IT部門が事前に確認すべき対策は

ITmedia.co.jp
Read at ITmedia.co.jp

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