Following Twitter's lead, LinkedIn introduced two-step verification as an optional security feature members can use to protect their accounts.
LinkedIn's new security measure emulates the two-step verification process of other sites and requires members to input a code, sent via SMS, when logging in from an unrecognized device for the first time.
"Most Internet accounts that become compromised are illegitimately accessed from a new or unknown computer," LinkedIn director Vicente Silveira wrote on the company blog. "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."
The update follows a access to millions of passwords that were then posted online., where high-profile members are often the frequent targets of hacking exploits. But LinkedIn has been far from a safe haven. Last year, the company was publicly embarrassed when it fell victim to hackers who managed to get
Enabling two-step authentication should make it more difficult for hackers to access your LinkedIn account, but it's not an impenetrable system, as CNET senior reporter Seth Rosenblatt explains in his.