Can you force social login account

We have a client who is having problems with duplicate accounts holders and would like to force all users to have at least one social media account.
Used social media accounts are;

• Facebook
• Twitter
• LinkedIn
• Windows
• Steam

My guess would this would need to be an Auto Action?

You don't want to allow login by normal username/password or you want to allow normal login, but still require a social account to be linked?

From what my clients is requesting, both.
The site in question has around 7000 members at this stage we are finding the some members are creating a separate account for each social media account to get around our checks and attempt to get multiple entries into competitions.

One way to combat this is to make it so users have a normal account and at least one social account, the other thing this will do is give the admin an alternate way to contact users who have had their access blocked due to some reason or another.

There is no way to force registration via CB Connect without disabling normal registration process and that'd only work with single sign-on method and not pre-filled. Double accounts doesn't seam like it should be all that common since it requires them to have 2 valid email addresses. You can try using CB AntiSpam and its duplicate registration protection to avoid the same ip address registering twice, which might help avoid this.

Thank i suspected that would be the case.

Is there a way to set up two factor autho on CB?

Is there a way to set up two factor autho on CB?

Yes, simply publish a two factor authentication plugin and it should work. The params field will be responsible for outputting the two factor parameters the user will need for setting up two factor authentication, which they'll fine in profile edit and/or during registration.