Gawker apologized for the breach, and urged users to change their passwords. If that password was used for accessing other sites, Gawker recommended that users change it for those destinations as well.
“It’s best to assume that your username and password were included among the leaked data,” Gawker said in an FAQ it posted on the Lifehacker site.
Moore had a better idea, and has assembled a way for people to check whether their account, including their password, has been compromised.
Moore used MD5 hashes of the e-mail addresses in the list he posted as a Google Fusion Table so users could check whether their accounts had been compromised without exposing the addresses a second time.
“This is a little clunky, but [it] works,” he said.