https://en.wikipedia.org/wiki/Key_size#Effect_of_quantum_computing_attacks_on_key_strength
I remember also reading (or was it a video?) about a new technology which is already created which would allow to read information from a computer from the distance, even if you are not connected to a network. So as long as you are withing 50m of range of that spying device, even in your home, nothing can save you. Unfortunately I don't have the link to it.
