The infinite monkey theorem 

The Internet is a vulnerable system. Its integrity cannot be assured. This is not because of genius hackers or careless users. The vulnerability is more a matter of the ‘Infinite Monkey Theorem’ . An infinite number of monkeys hitting keys on a keyboard an infinite amount of time will inevitably write the complete works of Shakespeare, not to mention crack your password (name of first pet plus your college locker number) .

People now connected to the internet now number 3.3 billion and estimates of how much time they spend on the internet per day range as high as ten hours.  Thus in just one ‘Monkey Year’ you get 3.3 billion times 3650, which may not equal infinity but big enough to get the Infinite Monkey theorem moving  

P.J.O’Rourke