Hmmmm.
Computers based on quantum mechanics have been in the realm of science fiction for years, but recently companies like Google (Nasdaq: GOOGL), and even the National Security Agency, have started to think practically about what their existence would mean.
These super-powerful computers would be exciting in many respects, but they would also be able to break the methods of data encryption that currently make it safe to browse the internet or pay for things online.
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