CB Defense: Why Does macOS 10.14.5 Issue a System Extension Warning After Sensor Install?

Products

• Carbon Black Cloud Endpoint Standard (formerly Cb Defense)

Issue/Introduction

Why do Macs running macOS 10.14.5 issue a System Extension Warning after a successful install of the Sensor?

Example:

System Extension Warning 

One or more system extensions that you have approved will be incompatible with a future version of 
macOS. Please contact "Carbon Black, Inc." for support.

 

Environment

• CB Defense PSC Sensor: 3.2.x.x and higher
• Apple macOS: 10.14.5 

Resolution

This references the fact that Apple will be deprecating the Kernel Extension (KEXT) in favor of a System Extension framework 
 

Additional Information

• This issue does not affect current Sensor compatibility with macOS 10.14.x
• Apple has not yet defined when KEXTs will be deprecated; the System Extension framework will be introduced with macOS 10.15 (Catalina)
• The initial release of macOS 10.15 (Catalina) will still allow KEXTs
• Carbon Black is planning for this occurrence as noted here