Quantum computing makes use of quantum-mechanical components to analyze data. Quantum computers use quantum bits (qubits) instead of binary digits (bits) to store information. So, whereas classic computer data points have a state of either zero or one, qubits have a “superposition” of states, that is, multiple values at the same time. The result is that quantum computers can store an incredible amount of data and use less energy than traditional computers. Some quantum processors are over 100 million times faster than their current counterparts. Quantum computing could be a threat to cryptocurrencies: if a hacker or group of hackers were to use a processor 100 million times more powerful than current processors, however, it would be entirely plausible to determine private keys only using public keys. In this case, a blockchain which shares only public keys is altogether exploitable.