Everyday quantum computing is years off - so why are some firms already doing quantum encryption?

Phone companies around the world are working to protect their customers' data from a threat does not yet exist: large quantum computers.

Although the arrival of these advanced machines could be as far off as 15 years, telecoms companies are already implementing new quantum encryption algorithms.

These firms are preparing for the possibility that #quantumcomputers will one day scale sufficiently to break through even the most sophisticated of today's encryption barriers.

http://www.zdnet.com/article/everyday-quantum-computing-is-years-off-so-why-are-some-firms-already-doing-quantum-encryption/