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Consider the following scenarios:

  • Scenario 1: macOS upgrade from old versions (10.14/10.15) to Ventura (13)

    In this scenario, "System Extension Blocked" is displayed. Permission had to be granted again. Same goes for Full Disk Access - permission had to be granted for Trend Micro Extension (XDR).

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  • Scenario 2: macOS upgrade from old versions(11/12) to Ventura(13).

    In this scenario, Full Disk Access permission guidance is shown as enabled, but actually is not. Permission had to be granted again, especially for Trend Micro Extension(XDR).

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The root cause for this issue is a bug in macOS. In the beta release of macOS 13.1, Apple listed this as a known issue: macOS Ventura 13.1 Beta Release Notes .

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As a result of this issue, user will be prompted to complete setup wizard (Full Disk Access part only).

 
This issue does not happen if the permission is set by MDM. Also, this issue can be reproduced when the permission is set manually.
 

To resolve this, please refer to the article, Authorizing the Trend Micro Vision One Endpoint Sensor for Mac.