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Cylance 1584 not working on ma…
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Cylance 1584 not working on macOS Big Sur
posted on May 3rd 2021, at 13:36
by
lunarg
Despite of Cylance being supported on macOS 11 Big Sur since build 1580, you may encounter an issue where Cylance would still show a red dot in its icon in the menu bar, and opening the GUI would still show this error message:
Driver Failed To Connect, Device Not Protected
To resolve this, you need to give the agent and the new Cylance ES Extension full disk access:
On macOS Catalina and earlier, Cylance used kernel extensions, providing full disk access via the macOS kernel. Because of the deprecation of kernel extensions and the subsequent introduction of the new system extensions mechanism introduced in macOS 11 Big Sur, you need to explicitly allow full disk access to the system ext
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