Official rules for sneaking, rather than fighting, through a net architecture are now available for Cyberpunk RED. They are straightforward: a contested Interface check between the netrunner and daemons/dwellers in the arch:

To establish stealth in a NET Architecture, you have to spend an additional NET Action when you Jack In. When you do, you roll a contested Interface Check (Interface + 1d10 vs Interface + 1d10) against all Watchers (Demons, enemy Netrunners … and other entities with an Interface Rank) currently in the Architecture. If you beat them all, you successfully establish stealth and enter the system undetected.

Once the netrunner is in, they need to make a similar check against any Black Ice they encounter:

When a Netrunner encounters a Black ICE while in stealth, they roll Interface + any bonus to Cloak Checks + 1d10 vs the Black ICE’s Perception + 1d10 instead of performing a Speed Check.

Once the netrunner fails the perception check, they are no longer sneaking and normal rules apply.

I’m glad there are more options for netrunners now. I hope RTal adds more options in future.