Thanks to the fingerprint scanner on the Galaxy S5, there is a level of biometric security on KNOX 2.0. In many cases, the device's owner will have to authenticate his identity with a combination of a fingerprint swipe and a password, adding another level of security.
The good news is that the Mobile Device Management software in the original KNOX will work with KNOX 2.0, and different containers can be set up for different jobs and different locations. You can even set up different containers for work and personal use. Split-Billing sends the bills for business and work apps to your company, and KNOX now supports all Google Play apps.
Getting sales from the enterprise is still a big deal, and is a part of the industry that each major manufacturer would love to own a large part of. Samsung KNOX is a way for the Korean tech titan to tout secure use of its flagship handset.
Samsung KNOX 2.0 is now on the Samsung Galaxy S5 and will be available for earlier Galaxy models
source: Samsung via AndroicCentral