Yahoo just announced that 3 billion users' accounts have been compromised, 3 times more than originally thought. This appears to be a fairly major under estimate, and once again makes the Yahoo breach the largest ever. Does this change anything for people impacted by the breach? Probably not since the damage has already been done, however once again it is a wakeup call to the dangers of breaches and a reminder that there is a long way to go in the fight against cyber criminals.