Modern Hikvision NVRs (G3 platform or newer) include deep-learning chips on the NVR itself.
Hikvision NVRs have a notorious history of backdoor vulnerabilities (CVE-2021-36260). If you expose a Hikvision NVR directly to the internet via port forwarding, you will get hacked. Similarly, Blue Iris has had RCE (Remote Code Execution) exploits. For both systems, you should use a VPN (WireGuard/OpenVPN) on your router, not UPnP. blue iris vs hikvision nvr