Approximately a week after Twitter introduces the two-step authentication called “Login Verification”, LinkedIn introduces the two step authentication, also.
On the LinkedIn blog they said: “All LinkedIn accounts are already protected by a series of automatic checks that are designed to thwart unauthorized sign-in attempts. Now, we are introducing a new optional feature that adds another layer of security to your LinkedIn sign-in: two-step verification.”
The two-step verification will require you to type a numeric code via SMS when logging in from an unrecognized device for the first time.
To see the step-by-step instructions of this new feature from LinkedIn, have a look at the LinkedIn Slideshare presentation below: