Re: Servers in space ?
The method of connecting users to the satellite. Either they'll have to have similar hardware that you use,
That would be just what would be required for standard satellite Internet, with probably a sprinkling of encryption. Some of those systems don't even require a terrestrial link to a gateway, unlike the early sat systems that were meant to just boost your download speeds for larger stuff (where RTT mattered less). Apart from that you need at least three satellites to cover most of the Earth, though you might get away with two if you concentrate on where the bulk of your customers are.
But your terrestrial control for the systems 'up there' would still be as vulnerable to being taken out as any other ISP, unless you happen to run it out of that undersea volcanic lair.