Password Rules Don't Always Help

03 Nov 2009
A while ago, I wrote about how users can't be trusted to come up with good passwords, and that it's up to us as programmers and web developers to hash the password (and salt it) so that it means bad password choices aren't immediately obvious to someone who gets hold of your stored data.

Of course, if people still use dictionary words, a simple brute force attack will work. So while some password tips such as "Don't use a dictionary word" are quite legitimate, there are plenty of rules and restrictions that do nothing but infuriate users and make passwords less secure.

There is absolutely no need to enforce certain password rules which seems to be forced on people throughout the corporate world and on many websites. Here are a few which I find the most annoying, supposedly implemented to make people use passwords which are more “secure”, but in reality do just the opposite. Passwords become more predictable and expert users who create complex passwords get infuriated when they're force to make them less complex in order to fit with the restrictions. I wonder how many of you have come across these before. Continue reading this note...

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