social networks, social media, privacy, security, facebook, twitter, linkedinLinkedIn today introduced support for two-factor authentication for users who choose to enable the security feature.

The rollout follows a similar move by Twitter last week. Twitter had suffered a spate of high-profile accounts were hacked.

Two-factor authentication sends a temporary password to the user’s mobile phone that the user must enter in addition to his or her password. A hacker can’t simply guess or decrypt the password to gain access to an account.

“Most internet accounts that become compromised are illegitimately accessed from a new or unknown computer (or device),” the company said in a blog post.

The feature appears in the security section of the account settings menu.