If you have any doubt about how secure that strong password you created really is, there's an easy way to check online. Just visit HowSecureIsMyPassword.net, which uses a combination of math and statistics to determine how long it would take for a PC to crack your password. It's sponsored by Dashlane, one of the top password managers available, and also gives you tips on how to make your password or passphrase stronger. The site claims the password submitted is not sent over the web, and its source code can be found on GitHub.
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