Add or Remove the Date of Birth on Linkedin

LinkedIn announced that they shut down the GitHub application, as of 26 November 2012. Now, LinkedIn only offers this, for sharing from Github:

You still have the option to share your code from GitHub on LinkedIn by sharing links on your homepage or in groups.

In other words, you can share links from Github the same way that you share links from anywhere else online. That is just the same old, manual feature as in the past.

I don't know where you're located, but in my corner of the world, this is not unusual.

If you wish to push text messages, you will need to sign up with an SMS service provider. You can reserve a short, 4-digit number for your services, which is expensive.

Or you can reserve a keyword within a 4-digit number. The number is then shared among other services, which is a lot cheaper.

I'm guessing Microsoft and LinkedIn are simply using the same SMS service provider. As they are not (?) allowing users to respond to their messages, they don't need to reserve a short number.

So the answer to your question is: They may not be using the same third party to manage two-factor authentication, but they are using the same third party for SMS services.