Two-factor authentication for Citrix Receiver for Windows

Interesting point, Henrik - was not aware that mobile Receiver supports this type of iterative communication via Radius. It's a bit different with APM as it does its own built-in OTP - so we'd need to investigate exactly how the communication happens between Netscaler and Receiver to ensure that APM can something similar. I would suggest opening a case with support to have it escalated and investigated further.