Do think we can fit this in? It looks pretty great.

On Jan 9, 2014, at 3:00 PM, Chris Karlof <[email protected]> wrote:

> This one is a little better than average, though, :)
> 
> https://tech.dropbox.com/2012/04/zxcvbn-realistic-password-strength-estimation/
> 
> -chris
> 
> 
> On Jan 8, 2014, at 3:51 PM, Chris Karlof <[email protected]> wrote:
> 
>> Hi Madhava,
>> 
>> I'm not keen on password strength estimators. Two reasons: 
>> 
>> 1) It's not clear how they should work. There's a lot of debate of what 
>> qualifies as a "strong password". and many strength estimators often do 
>> silly things like say "password0" is weak but "password9" is strong. 
>> 2) They add UX noise for unknown benefit. Plus a believer that if a user 
>> really wants a weak password for whatever reason [1], we shouldn't shame 
>> them with a big red indicator or frowny face. 
>> 
>> There are some things I think we should do:
>> 1) Require a minimum length (8 char?)
>> 2) Provide guidance for users who would like to know how to choose a 
>> stronger password
>> 3) Throttle bad password guesses
>> 
>> Another interesting idea is to disallow users from using passwords on a 
>> "naughty list", e.g., a list of the X hundred or thousand most common 
>> passwords. This combined with throttling can be quite effective.
>> 
>> -chris
>> 
>> [1] hey, how often do you sign up for a service you don't care about much or 
>> just wanna try out and give it some garbage password?
>> 
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Ryan Feeley
Product Designer, Identity
Mozilla UX
IRC: rfeeley

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