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Possible Duplicate:
Is there any added security benefit to username complexity requirements?Is there any added security benefit to username complexity requirements?

Are there any good security reasons for a web application to limit the length of a username?

If there is, what should be the minimum and maximum length allowed?

Possible Duplicate:
Is there any added security benefit to username complexity requirements?

Are there any good security reasons for a web application to limit the length of a username?

If there is, what should be the minimum and maximum length allowed?

Possible Duplicate:
Is there any added security benefit to username complexity requirements?

Are there any good security reasons for a web application to limit the length of a username?

If there is, what should be the minimum and maximum length allowed?

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Possible Duplicate:
Is there any added security benefit to username complexity requirements?

Are there any good security reasons for a web application to limit the length of a username?

If there is, what should be the minimum and maximum length allowed?

Are there any good security reasons for a web application to limit the length of a username?

If there is, what should be the minimum and maximum length allowed?

Possible Duplicate:
Is there any added security benefit to username complexity requirements?

Are there any good security reasons for a web application to limit the length of a username?

If there is, what should be the minimum and maximum length allowed?

Post Closed as "exact duplicate" by user10211, AviD
Tweeted twitter.com/#!/StackSecurity/status/234289666080247808
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user10211
user10211

Usernames - Should their length be limited?

Are there any good security reasons for a web application to limit the length of a username?

If there is, what should be the minimum and maximum length allowed?