Check yo shit Article: http://lifehacker.com/5-million-gmail-passwords-leaked-check-yours-now-1632983265/+tcraggs22 Check your gmail here: https://isleaked.com/en.php
Negative. I change all my important account passwords every couple of months. I am not worried about leaks like this its the shit that stays underground for 9 months that no one hears about until they get what they came for. Create another email address or two for forums, giveaways, subscriptions etc. Also anyone who is using Gmail really needs to setup two factor authentication on their account. Use two factor on anything that you can. As for the leaked file itself. From the bit of research I have done on it it looks like someone took a ton of separate email/password files and combined it in one big file. A lot of emails in the file are for gmail accounts that have the + modifier. Which you do not use to sign into Gmail itself. So it shows that at least some of the account info came from forums, tube sites, and dating websites.