The Quantum World - Quantum Computers

Hi does anyone think quantum computers are a real possibility? - if it happens then your computer will become a box of infinite parallel universes where all possiblities exist and happen - what implications do you think that will have for security?

for example if you use a sandbox then a hacker could simply choose an alternate version of reality where the sandbox isn't installed.

presumably also you will be running a machine where your machine is both uninfected and infected at the same time?

your thoughts on this most curious of curiosities please.

shrodinger's cat is also most welcome to comment on the proceedings

 

It shouldn't be a problem because you just stay one parallel ahead of anything you don't want. And if it is really capable of infinite parallels just choose one of your own creation.