Twitter Tries Again with Two-Factor Authentication
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Twitter is aiming to improve security for its users with an improved two-factor log-in verification system that goes beyond the SMS-based system that the company first deployed two months ago. Security experts eWeek spoke with have mixed opinions on whether Twitter's latest attempt at user security will really make a difference.
Two-factor authentication refers to a site's or service's requirements for a second password or token in order to gain access. The idea is that a single username and password combination can potentially be breached, but adding in the second factor for authentication, increases the complexity and reduces the risk. Typically, two-factor authentication systems use a randomly generated password that is time-based, in order to make the log-in more secure.
Twitter first implemented two-factor authentication in May, after the accounts of a number of high-profile media users were exploited. The initial May implementation relied on users receiving a Short Message Service (SMS) text on their smartphones in order to provide the two-factor log-in verification.