Cloud Managed Networks

Does anyone know if there is an Aruba Central Hardening Guide? I was able to find one for ClearPass but not Central. 

I strongly second this. I harden all of my on-prem systems to closely align to vendor hardening guides. Does the fact there's no hardening guide AC is secure by design and there's no way to make the tenant more or less secure as a user?

Here is the AOS10 Harding Guide I've used, which would apply to AOS10 AP's and Gateways.

https://support.hpe.com/hpesc/public/docDisplay?docId=a00133511en_us

 I imagine your Central would be secured by increasing Security Features in GreenLake, like MFA and IP based access rules. 

I appreciate the link sccmobjohnson, useful for devices.  I've been using that along with the Tenable hardening guide for AOS.
https://www.tenable.com/audits/ArubaOS-CX-10.x-Hardening-Guide-v1.0.0

My reasoning in asking for a hardening guide for AC specifically is more about auditability and proving that we're adhering to CIS , or at least vendor hardening guidelines. If there's nothing documented, it's hard to say we've done everything required to meet these requirements. 

Thanks though.