Getting quality pseudorandom numbers continues to be a problem. In 2016 the Chrome browser had to fix its pseudorandom-number generator. Modern browsers are now pretty good at producing seeds for their pseudorandom numbers but, unbelievably, the generators themselves can still have problems. Chrome was using an algorithm called MWC1616, which was based on a combination of multiplication with carry (the MWC from the name) and concatenation to generate pseudorandom numbers. But it accidentally repeated itself, over and over. What a bore.
