Access official resources from Carbon Black experts
Cb Defense (current)
Windows has enhanced security setting that cause Internet Explorer and Microsoft Edge browser to look for additional signature when it downloads MSI files.
Enhanced security check is demanding additional signature on the MSI package that is missing in the current version of Cb Defense Sensor kits.
The downloaded file is not corrupt in any way or shape. It only misses additional signature to satisfy the Windows enhanced security check.
The issue will be resolved in a future Cb Defense release at which point this KB article will be updated.