Gawker Media was hacked this weekend and up to 2.5 million usernames and passwords were stolen from the site and released over the web. Hackers have been going through those decrypted files and using them to test Twitter, Facebook and email accounts to see what information they can break into. Use Slate's new tool to quickly test if your account was compromised. If it was, it's best to change your password immediately.

How can you tell if your account was hacked? Use our handy widget, below. Just type in the e-mail address you used for your account--we won't be storing these addresses or using them for any other purpose--to see if you've been exposed.

Read the full story -- and check your account -- at Slate.

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