D-Wave claims to have the first commercially viable quantum computer. If it really works as advertised the world is in for tremendous disruption because it will make it possible to almost instantly break the largest encryption keys used for the secure transmission of financial data electronically.

On the other hand, it would also make problems such as weather forecasting and protein folding modeling trivial, so the potential for new medicines and cures for many ailments is a positive side of the coin. It would also make new encryption schemes possible.