June has already been a bad month for getting hacked. Professional networking site LinkedIn, dating site eHarmony and CBS-owned streaming radio site Last.fm all reported that user password data from about 8 million accounts was stolen.
While all advised their customers to change their passwords -- LinkedIn went so far as to disable compromised accounts, forcing users to create new passwords -- changing your password isn't enough. Attackers have new strategies and companies have responded with better protection methods. Combined, these two factors have changed what it takes to make a safe password.