Computer (3) + Logic (4) then 7d6.hits(5)=2 hits
You can reboot it into command line and try to hack in from there, but you don't know enough about this old OS to bypass the login without hacking it.
Below, rolls for the hacking attempt. I don't think we have the time for analysis, so I'll try hacking on the fly
- but I don't know if I can hack from VR (the VR capabilities for such old system might be incompatible) and so my exploit programs might be incompatible as well.
in any case knock the dices as you wish, I made several rolls if you need to accumulate hits against the firewall
Hacking(3) + Exploit(3) + hotsim(2)
8d6.hits(5)=4, 8d6.hits(5)=3, 8d6.hits(5)=2, 8d6.hits(5)=2, 8d6.hits(5)=38d6.hits(5) → [5,6,1,6,1,2,1,6] = (4)
8d6.hits(5) → [1,5,2,6,3,3,2,5] = (3)
8d6.hits(5) → [2,6,4,6,4,4,2,1] = (2)
8d6.hits(5) → [3,5,6,3,1,1,3,3] = (2)
8d6.hits(5) → [5,4,2,6,2,5,1,4] = (3)