[Terr_]

This gives me a childhood flashback to a show called MathNet, an educational police procedural (a la Dragnet) where both investigators have holstered calculators.

https://en.m.wikipedia.org/wiki/Mathnet

[nedrylandJP]

and there were infamous hackers too

https://youtu.be/vNhBq3kjq_Q?t=2011

[Terr_]

Taking advantage of an extra that wasn't charged to the customer?

Ah, that's a classic "use after free" vulnerability.

[bhollan]

I cannot even tell you how many glorious memories this brings up! Thanks for a walk down memory lane.