FORBES - Dec 12 - Security researchers at 4iQ spend their days monitoring various Dark Web sites, hacker forums, and online black markets for leaked and stolen data. Their most recent find: a 41-gigabyte file that contains 1.4B username and password combinations. Anyone who wants to can simply open it up, do a quick search, and start trying to log into other people's accounts. The data is not from a single incident. The usernames and passwords have been collected from a number of different sources - Netflix, Last.FM, LinkedIn, MySpace, Zoosk, and others.