Trusted execution is a generic name for a Gatekeeper and other technologies that aim to protect users from malicious code.
General:
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DevForums tag: Gatekeeper
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Apple Platform Security support document
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Safely open apps on your Mac support article
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Hardened Runtime document
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WWDC 2022 Session 10096 What’s new in privacy covers some important Gatekeeper changes in macOS 13 (starting at 04: 32), most notably app bundle protection
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WWDC 2023 Session 10053 What’s new in privacy covers an important change in macOS 14 (starting at 17:46), namely, app container protection
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WWDC 2024 Session 10123 What’s new in privacy covers an important change in macOS 15 (starting at 12:23), namely, app group container protection
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Testing a Notarised Product DevForums post
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Resolving Trusted Execution Problems DevForums post
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App Translocation Notes DevForums post
Most trusted execution problems are caused by code signing or notarisation issues. See Code Signing Resources and Notarisation Resources.
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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
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