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Here’s a great blog post about passwords – particularly password strength meters – by Dan Wheeler on the Dropbox tech blog. He’s coded a password tester that he hopes is more useful than existing (and generally rather simplistic) offerings.

I won’t try to pretend that I followed the rather technical and mathematical bits in the middle of the piece but the bits I did understand I found really interesting.

You can try Dan’s password strength tester HERE. And afterwards you’ll probably find yourself considering changing one or two passwords.

PS: After reading through the comments on Dan’s post, here are a few more password-related tools that you may or may not find useful…

GRC’s Interactive Brute Force Search Space Calculator (I’ve long been a user of their Password Generator but this calculator is news to me)

Wordkey App

How Secure Is My Password?