confirmation that a user is who they claim to be, either by verifying what they know (password), what they have (a key) or what they are (fingerprints).

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61
votes
11answers
9k views

Should users be allowed to use any special character they want when creating a password?

I came across a number of login configuration settings where there is a list of allowable special characters and was wondering: Does this limitation cater for a specific security or usability need? ...
27
votes
6answers
2k views

Forcing users to use a particular pattern for passwords

Many websites, specially government ones, enforce users to use a password which conforms to particular criteria. For example: use between 8-13 characters with at-least one integer and one capital ...
27
votes
8answers
13k views

How to tell the user his login credentials are incorrect?

When a user has entered incorrect details into a login form, is it better to tell them: The username or password you have entered is invalid. or The user name you have entered is invalid (for ...
21
votes
2answers
759 views

What's better for invitation emails: a temporary password or a one-time login url?

Our web app allows our customers to invite their collaborators into their account. They can submit the new user's email address, and our app sends the new user an email inviting them to login. Once ...
20
votes
5answers
1k views

Whats more user friendly local authentication or remote authentication (OpenID, OAuth)

from a usability perspective only (not security) what do users find more comfortable A site with it's own login page (need to sign up but then easier to login) or a site with remote authentication ...
18
votes
10answers
3k views

How to ensure users can't sign up for multiple accounts?

I'm working on a web app right now which users will normally have to pay to use, but I want to also offer a short demo period (haven't settled on how long yet, but somewhere between 1 day and 1 week). ...
15
votes
5answers
2k views

Should I use two steps or one when users change password?

I currently have a page dedicated to changing passwords. There are 2 options: A 2 step option: download bmml source – Wireframes created with Balsamiq Mockups download bmml ...
13
votes
6answers
719 views

What is the best way to request individual characters from a password?

Frequently, sites that should really value security (especially banks) ask for several individual characters from a password. Typically I've seen them do it like this: download bmml source ...
11
votes
3answers
1k views

Is it bad practice not to allow users to create an account (versus OAuth or OpenID)?

When creating a website is it poor practice not to give users the option to "create an account"? Especially with rapid development, it seems more secure with less effort to offload authentication. ...
10
votes
5answers
702 views

Why would you, for a local authentication site, have usernames, instead of using e-mail address to login?

In websites where authentication is local, or mixed local and remote (e.g. OpenID), I still often see the question for a username. I can very well understand this in the case of twitter, where the ...
8
votes
3answers
4k views

Should my app send a confirmation email on user registration?

I'm grappling with the user registration experience for my application. I'm considering this model: User enters... Username Password Password confirmation Email address The app displays a ...
7
votes
2answers
123 views

Masked password characters in a GUI vs terminal

In a GUI form, or for example a login box on a website, it's usual for masked characters to appear like ********* as you type out your password. But in terminal applications, for example ssh, this ...
6
votes
4answers
264 views

How many atempts should you give a user before invalidating his password?

What I am trying to avoid here is brute force attacks on a user's password. And I am thinking about doing that by invalidating his password when too many attempts are made in the same minute, hour, ...
6
votes
2answers
374 views

How can I encourage users to authenticate?

I am working on a post-sale customer support project for a US high street retailer (for the rest of this post I will refer to them as 'Jon's Cellphones'). The program will enable customers who ...
6
votes
1answer
126 views

What OpenID log-in screen is appropriate for people who don't understand SAML, OpenID, or Federation?

Every person that I've introduced to Stackexchange has had the same question/problem... that is they are confused by options to log using "gmail" or "hotmail" and assume that this is an email ...
6
votes
3answers
917 views

social sign in redirect vs popup window

I have seen that most websites usually open the "login with Facebook" page in a popup window, but there are also some websites (like stackexchange) that just redirect the browser without opening a ...
5
votes
4answers
278 views

Logging in with email only

I'm working on a blog and there will be an option to post a comment. I could implement registration with username, password and email — the standard way. I could implement 3rd-party authorization ...
5
votes
4answers
2k views

How do I best tell a user that his/her account will be locked if they enter the wrong credentials too many times?

We are going to add an additional layer of security to our product by locking user accounts for a short period of time (configurable in the product, but probably 5-10 minutes) when a user has tried to ...
5
votes
10answers
637 views

Is there any advantage of signup before login with social plugins?

I am building a site and was thinking about if there should be a signup option at all. I found the question about the difference between sign up and log in with Facebook/Google/etc but there was ...
5
votes
1answer
162 views

How important is social sign-up to attracting new users?

Many website, including this one, are using social sign-up to speed up new user registrations. I'd like to know what are the adoption rates of this service, and whether there are any pitfalls to using ...
5
votes
4answers
417 views

Biometrics Activated UI

I'm having a problem regarding a user interface with bio-metrics inter action in employee logging in/out. The employee needs to choose whether he/she will login or logout and enter his/her employee ...
4
votes
6answers
453 views

Is there a way to disallow multiple votes from one user without forcing authentication? [closed]

I'm looking for a way to prohibit voting rigging (cache/cookie-clearing, etc.) without requiring the user to jump through hoops (registration, authentication, etc.). Any ideas?
4
votes
4answers
265 views

Business application: Is it better to redirect or pop-up for re-authentication?

This question is geared for a line of business application someone would pay for, not a general public facing website. Is it better to redirect for authentication/re-authentication or show a pop-up? ...
4
votes
2answers
177 views

How to ask for a user's identity?

My company is working on an internal phone application to be used by many users that requires authentication. Based on historical data, we can assume the likelihood of a user's identity at a given ...
4
votes
3answers
441 views

Is offering more than one openid/social-sign-in option a good idea?

Lots of sites nowadays offer the option to log in via Google, Facebook, LinkedIn and so on, and sometimes a standard username/password option as well. While this goes a long way toward helping users ...
4
votes
2answers
180 views

How to request a third-party login within a seperate mobile application

I'm designing a mobile app that requires the user to log-in with their LinkedIn account. I feel I might have cluttered too much info into it, but everything seems to be important. I want the user ...
4
votes
1answer
211 views

What is the proper way to provide social media authentication: in login or register form?

We provided standard login/registration forms for providing email and password, but I'd also like to allow user use my website after oAuth authentication. Should they be able to register or login via ...
4
votes
1answer
129 views

Dealing with Connected Social Accounts and Potential Orphans

Our application has the following signup paths: Twitter Connect Facebook Connect Email/Password Once you signup with one, you have the option to connect either both social account (in the case of an ...
3
votes
4answers
886 views

Password validation in login form

In registration form, I have client side validation for strength of password. For example password should be not less than 6 symbols, consists at least 1 digit, and at least 1 letter. For example: ...
3
votes
2answers
146 views

Should I verify e-mail format in login form?

My B2B web app's login form has an email and password field. So far, I'm only checking if the fields are empty. I then make my authentication request, if there's a problem I return only one kind of ...
3
votes
2answers
178 views

What is the best way to notify a user he doesn't have an account

As a helpdesk engineer I'm offering support on a rather big Belgian E-commerce website. While we have a vast number of users there are also many users whose account is deleted automatically after 1 ...
3
votes
2answers
58 views

Authentication frequency for polling system

I am building a system to be used for polling during an election. Security is a massive issue as I'm sure you understand! We are using two factor authentication so the user will be asked to supply a ...
3
votes
1answer
202 views

Looking for 'planner' design patterns and opinions

We are designing a revamped part-time studies course catalogue at the post-secondary institution where I work. One of the features I have included is an authenticated planner for saving and ...
3
votes
2answers
252 views

Facebook/Twitter login only vs. Facebook/Twitter signup and login separately

I have searched for this topic here, but haven't found solid answers for the problem. So the situation is this: we are creating the authentication screens for a mobile app and we are not sure which ...
3
votes
2answers
82 views

Status feedback problem

We have a mobile application. To register in our application you need to enter your phone number. After that, you receive an SMS with a code you need to enter to confirm your phone number. There is a ...
3
votes
1answer
82 views

Mass user authentication for a bracket system

I'm currently setting up a layout for a website that's going to be a sort of "bracket" website, where users can sign up and they can be approved/denied by an administrator. I'm currently at a ...
2
votes
5answers
743 views

Do people expect to mistype their passwords?

I expect people have to type in passwords pretty regularly. Sometimes if you haven't typed it in for a while but end up faced with a login prompt, you think you remember the password, type it in, and ...
2
votes
6answers
855 views

WebApp User Login Screen

I am currently considering options for a web/intranet application login screen and this seems like a good place to share. Not much work has gone into the current screen since creation and it exists ...
2
votes
3answers
175 views

Forcing users to use a new password everytime they reset

This is getting common that while resetting one's password, web-applications force users not to use a password which they had used before. Just like forcing users to follow a particular pattern of ...
2
votes
1answer
147 views

User Authentication/Timeout for web-app with personal Information

The concept behind "Remember my Username" and even allowing browsers to save your "username and password" for this site seems like it could be controversial. Given that different audiences prefer ...
2
votes
3answers
54 views

Visual indication of special privileges

I'm working on a mobile app for android and iOS that lets you manage sports teams. You can follow any team, but can only manage those your account is associated with (You're the coach, for example) ...
2
votes
1answer
44 views

In Single Sign On what does SAML “enabled” control do or mean?

I am currently working on the redesign of SSO signup process/form and want to understand what enabling SAML control implies. The rationale being that if an organisation does not have SSO enabled the ...
2
votes
1answer
185 views

Best way to add account providers?

I briefly looked at spotify and I found that they use 2 providers: Themselves and facebook. Ie I can log in to spotify with facebook. But then it asks me for my spotify account when I downloaded the ...
2
votes
2answers
250 views

When is user authentication really necessary?

Better said, how much harder is to mantain a forum/message-board/community webiste with unauthenticated users and what would be the benefits and disadvantages in comparison to an account-based one? ...
1
vote
2answers
118 views

What is the correct tab-indexing for a log-in form with a “forgot password” link?

I have a login form shown below, and I am trying to figure out the correct tabbing for it for the best accessibility and user-experience. This seems like a very common design, but I haven't found a ...
1
vote
2answers
139 views

UX Design where password is optional

I have a web site where some users authenticate with email/password and other users only require an email address to authenticate. I'm trying to make the most natural login screen, but I'm struggling ...
1
vote
5answers
221 views

How can I make a login form seem more trustworthy?

We have a web app where the user has to log in at the beginning. The login shows our company logo, the name of the product incl. logo of the product and the login form: I showed this app to a test ...
1
vote
2answers
91 views

Which social login should I use, Google OAuth2 or Google+?

Google supports 4 ways to "sign in with google" OAuth OAuth2 Google+ Google Apps I want a generic "sign in with google", I'm not doing anything app-specific, so the last one is out. Presumably ...
1
vote
1answer
86 views

How to encourage users to download an app to complete strong authentication (two factor)

I'm designing a strong authentication (two factor) solution for a website. Users will be forced to use two factor (legal requirement). We have two supported methods an SMS verification code texted to ...
1
vote
1answer
45 views

A better alternative to asking secret questions and answers when logging in to a banking site

It seems to be a common practice of credit card and banking web sites to ask answers to secret questions each time you log in from a new computer (for obvious reasons) There are many frustrating ...