Hackers have published private messages from some 81,000 Facebook accounts, and may have access to 120 million users' accounts in total. The group of hackers had been attempting to sell the private messages from accounts it has access to, asking for 10 cents per account through an online advertisement that has since been taken down. Still, there is reason to doubt the extent of the group's hacking, as Facebook has maintained that its security has not been compromised.