If you're reading this, it's not too late to change your LinkedIn password

From 123456! to 654321!.

Mark Zuckerberg's Twitter and Pinterest accounts got hacked earlier today, and the culprit likely got Zuck's passwords from the LinkedIn password dump revealed last month.

This is as good a time as any to remind you that you should probably change your LinkedIn password. The dump contained over 100 million passwords (including mine), and the company says the information probably came from a 2012 breach of user information.

Australian cybersecurity expert Troy Hunt has set up a handy website, haveibeenpwned.com, that will tell you whether or not your account information has been compromised.

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To be clear, you probably don't need to worry about Hans Gruber-types using your information to hold your bank account hostage or anything. Still, changing your LinkedIn password is the best way to keep porn bots from contacting your professional network.

By Noah Kulwin, Recode.net.

CNBC's parent NBCUniversal is an investor in Recode's parent Vox, and the companies have a content-sharing arrangement.