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Questions tagged [user-names]

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73
votes
7answers
16k views

Are random URLs a safe way to protect profile photos?

I would like to move from sequential to random user IDs, so I can host profile photos publicly, i.e. example.com/profilepics/asdf-1234-zxcv-7890.jpg. How long must user IDs be to keep anyone from ...
30
votes
4answers
6k views

Should I be worried if I accidentally entered my password in a username field?

Occasionally I will fail to hit Tab properly when entering a username/password combination. This results in me submitting username "myUsername$ecretPa$$word" along with a blank password. I always ...
29
votes
7answers
5k views

Does username length/complexity/uniqueness positively impact security?

Is having a longer/more complex username considered more secure than using a shorter/basic one? Would the uniqueness of a username positively impact security? This is assuming that adversaries aren'...
34
votes
5answers
5k views

What is the point in having arbitrary username requirements?

I've looked around on Security.SE, but couldn't find much related to the following problem: I recently signed up for Chase Quick Pay as my method of being paid by a part-time job. I've heard of ...
5
votes
3answers
2k views

What are the benefits to a two-page login system for a webapp?

I have noticed many website going to a two-page (not two-factor) login system - where you enter your username on page 1 and click submit, and then enter your password on page two and click submit. ...
4
votes
4answers
722 views

Why is a password accompanied by a username deemed 'safer'?

While browsing this community I notice that some people say that the main advantage of usernames accompanied by passwords is as they take more tries to be brute forced, however I don't think that is ...
75
votes
3answers
15k views

Does correcting misspelled usernames create a security risk?

Does correcting a misspelled username and prompting the user with a valid username introduce a security risk? I recently tried logging into facebook and misspelled my email. They prompted me with ...
13
votes
3answers
4k views

How to handle emails as usernames under GDPR?

Using emails as usernames for webapps is a convenient way to avoid the "yet another online username" problem. As such, by using this approach, the emails should be easily available in the backend to ...
7
votes
2answers
1k views

I accidentally entered password for a website as a username for another website

First and foremost, I am sorry for posting anonymously for security reasons. Exposing my identity might mean exposing my vulnerability, which comes from the problem decribed below. I have accounts in ...
0
votes
2answers
1k views

How to encode a username in PKIX certificate?

I was reading through RFC 5280, PKIX Certificate and CRL Profile, Section 4.2.1.6, Subject Alternative Name: The subject alternative name extension allows identities to be bound to the subject ...