Secure instant messaging app Signal launched this week a new feature called “Signal PINs” which the company says will help users migrate account data between devices. From a report: Signal says that in the long run, this new feature is the base and the first step towards moving away from using phone numbers as profile IDs. The new Signal profile PIN feature is already live and available for all Signal users. The feature can be enabled in the Signal Settings section, under Privacy, and the Signal PIN option. Once enabled, users will be asked to create a PIN code that will be associated with their account. The PIN can be anything from a four-digit number to a long alpha-numerical string.