Today's adventure in online security comes via the Daily Dot, which reports that 5 million Gmail user names and passwords were posted on a Russian Bitcoin forum called BTCsec. Forum administrators removed the post, but it was up long enough for screen shots. The person who posted it claims that 60% of the info is still valid, though Business Insider reports that many of the accounts appeared to be out of date. Those worried can check if their address has been compromised at this Is My Email Leaked? site, though it was working only sporadically. Either way, the Daily Dot recommends changing your password at Google and putting two-factor authentication in place.