Equifax will debut a new service that will permanently give consumers the ability to lock and unlock their credit for free. From a report: The service will be introduced by Jan. 31, Chief Executive Officer Paulino do Rego Barros Jr. wrote in a Wall Street Journal op-ed Wednesday, a day after taking the helm. The company will also extend the sign-up period for TrustedID Premier, the free credit-monitoring service it's offering all U.S. consumers, he said. "The service we are developing will let consumers easily lock and unlock access to their Equifax credit files," Barros wrote. "You will be able to do this at will. It will be reliable, safe and simple. Most significantly, the service will be offered free, for life." Barros was named interim CEO on Tuesday, less than three weeks after Equifax disclosed that hackers accessed sensitive data for 143 million U.S. consumers.