Related story from an earlier time: Planet Poker, one of the earliest online poker sites, had about the least secure shuffler one could imagine, including: 1)

Related story from an earlier time: Planet Poker, one of the earliest online poker sites, had about the least secure shuffler one could imagine, including: 1) They used the default pRNG library that came with their Borland C++ compiler. 2) That pRNG generated only 32-bit outputs (slightly smaller than 52!) 3) They reseeded it for every shuffle, with the current system time, in milliseconds. A former consultant eventually took advantage. With a reasonable guess for the server's system time, it was sometimes possible to identify the entire deck ordering based on one's first two cards, and almost certainly after seeing 5 cards (hole cards and flop, in holdem). Even without source code access (as in the consultant case), 1 and 3 might have been sufficient for someone to guess their way into this exploit. The original paper isn't loading for me, but here's a recap detailing even more problems than the above: http://www.lauradhamilton.com/random-lessons-online-poker-exploit http://www.lauradhamilton.com/random-lessons-online-poker-ex...