$100M ARR and fully remote!
In any case, huge respect to InVision for being one of the leaders in advocating remote work.
I'm young and still find it invaluable to be able to walk over to Jane in engineering or Bob in marketing to hash things out in-person.
Code exfiltration for trusted employees is as easy as an SCP, an email, whatever. Very few companies have extreme controls around these sorts of thing.
That said, typically remote-only companies will send you a laptop specifically for work that they have control over.