Professional social-networking site LinkedIn on Friday introducing a new optional feature that adds another layer of security to your LinkedIn sign-in: two-step verification. Most internet accounts that become compromised are illegitimately accessed from a new or unknown computer (or device). Two-step verification helps address this problem by requiring you to type a numeric code when logging in from an unrecognized device for the first time. This code will be sent to your phone via SMS. When enabled, two-step verification makes it more difficult for unauthorized users to access your account, requiring them to have both your password and access to your mobile phone.

If you have a LinkedIn account, you can Turn on Two-step verification for now by going to Settings, selecting the Account tab and clicking Manage security settings option.

The news come one week after Twitter introduced two-factor authentication following a series of recent hacks targeting high-profile businesses on the blogging site. Apple, Facebook and Google also offer two-step authentication as an option for users.