Spooky Action at a Distance

Quantum Computers when they are finally perfected in the next 20 years or so, will be able to crack todays commonly used cryptography, so for example everything you do on the internet would then be susceptible to someone intercepting and decrypting it.

Quantum cryptography, which could replace current cryptography, has distance limits, and is based on a property of quantum mechanics that Albert Einstein called "Spooky Action at a Distance".

New Record for Quantum Cryptography: Researchers take a big step toward their goal of spy-proof communications via satellites. Link