Super-scalable B2B access
B2B access control is typically implemented using techniques that require back office operations to administer the users individually. Often using Active Directory provisioned on a periodic basis.
What you would need, in fact, are the self-administration techniques for the B2B and B2E portals that are currently common practice in B2C identity management. And, of course, combined with strong and secure access control.
This would make your access control administration ‘super-scalable’ with which you can turn costly back office administration into a self-administration process, which is executed by the end-users themselves. Yet, you want to maintain the level of protection against malware and malicious intrusion attempts.