You really can't, anymore. You can watch traffic and hope that anything nasty isn't communicating with the outside world, but then there's all sorts of side cha

You really can't, anymore. You can watch traffic and hope that anything nasty isn't communicating with the outside world, but then there's all sorts of side channels that you may not know to watch. At some point you just have to admit there's limits to privacy and work with them. You paper journal could be stolen and read / rewritten too, yaknow? It's not a new problem, its just in a new context.