Hello. Stop reading this story and go check just how compromised your email accounts are. 。

Once you've clicked that link--assuming your email is linked to at least one site that's been breached at some point--you should go change your passwords.。

Now, back to the story. 。

Now, back to the story. 。

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This latest change-your-passwords reminder was brought to you by an insecure database that reportedly contains around 560 million login credentials. The unknown compiler of that database appears to have collected those insecure logins from hugely popular sites/services such as LinkedIn, Adobe, DropBox, MySpace, Tumblr and more that were hacked at some point in the relatively recent past.  。Mashable Light SpeedWant more out-of-this world tech, space and science stories?Mashable Light SpeedWant more out-of-this world tech, space and science stories?Sign up for Mashable's weekly Light Speed newsletter. 。

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(So, again, if you use those websites and haven't recently changed your password, it might be a good idea to stop reading this article and go do that.) 。

The folks at Kromtech Security Center discovered the database while performing a regular scan of easily accessible devices connected to the internet. 。

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The device on which these logins are stored isn't easily accessible to anyone with an internet connection, but it's run on MongoDB, an open source program that isn't exactly known for being secure. With a little understanding of how such programs work, those 560 million emails and passwords could be yours to peruse.。

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In closing, again, change your passwords, folks.。In closing, again, change your passwords, folks. 。Featured Video For You。