And here's a key to combat hacking -The Economic Times:
David Pearson, a division scientist at the Massachusetts-based BBN Technologies is already trying his hand at building an unhackable network. And thanks to quantum cryptography, it is possible.

It harnesses quantum physics to create encryption keys that are all but impossible to crack because they are rendered useless by simply looking at them. The keys are made from tiny bits of light called photons. Even when assuming hypothetical eavesdroppers with unlimited computing power, the laws of physics guarantee that the secret key exchange will be secure, given a few other assumptions.