[Turing_Machine]

Yeah, you'd want blackout curtains (or better, paint) on your windows. Still cheaper and easier than making your office into a Faraday cage.

[jfoutz]

Working graveyard and renting, I learned aluminum foil is perfect. cheap, trivial to install and remove. and perfectly opaque.

[swayvil]

What did you use to attach the foil?

[jfoutz]

my windows had little bits of molding and surfaces for the foil to crumple up against and conform to. I didn't need anything else. I suppose tape would work.

[bb88]

That assumes that Li-Fi doesn't leak RF still.

[osigurdson]

Can encryption not be used with LiFi?