macOS Mojave introduced a security feature that allows third-party applications to access protected user data. Cylance recommends that customers running macOS Mojave and later allow the Full Disk Access permission for all Cylance Smart Antivirus services. Not enabling Full Disk Access could affect agent functions such as Background Threat Detection and Memory Protection.
Administrators can use one of the following methods to ensure that the Cylance Smart Antivirus services have the full disk access they need:
#remove old version of Cylance if exists
/Applications/Cylance/Uninstall\ CylancePROTECT.app/Contents/MacOS/Uninstall\ CylancePROTECT --noui --password=supersecret
#install latest Cylance version with install token
echo rfgsergsefgsfgsdfg > /private/tmp/Cylance/cyagent_install_token
installer -pkg /private/tmp/Cylance/CylancePROTECT.pkg -target / -verbose