Quantum computers, or computers based on the principles of quantum mechanics, stand to exponentially increase computing power within the next two decades. Though the scientific community is still fiercely debating the very nature of quantum mechanics itself, and numerous technical obstacles stand in the way of applying the principles of quantum mechanics to machines, the field is rapidly developing. Now, the widespread use of quantum computers in industry is likely only a decade or two away. Such devices will be far more powerful than even the most powerful supercomputers seen today, carrying significant implications for national security, cyberwarfare and intelligence operations, among many other things. Just how powerful quantum computers can be — and how their adoption could lead to another revolution in computer-related technologies — becomes clear when we consider their computing power.