V13 - Use of credentials for persisten guest agent and deployment kit?

[EviLin]

Hello,

Designing and setting up a completely new secure micro-segmented environment.
And Im gonna deploy Veeam deployment kits on all VMs for using certificate based auth. and persistent guest agent.

But what I dont get, even though I install the veeam deployment kit on the protected vms and enables persistent guest agent in the backup jobs, im still forced to set some credentials when using guest processing, what are these credentials for? Should'nt we be able to completely avoid using credentials, when all protected vms has the veeam deployment kit?