Six months ago, 1.3 million registered users of Gawker Media had their passwords compromised when the site was hacked by Gnosis. The passwords were encrypted, but 188,279 of them were decoded and made publicly available for all to see. Just three weeks ago, Sony Pictures was hacked by LulzSec, with 1 million passwords taken and 40,000 made publicly available. Comparing the two data sets, Troy Hunt found 88 accounts on both sites that used the same email address, and of those accounts, 67% used...