The recent Equifax breach has prompted renewed speculation about a possible successor to Social Security numbers for personal identification in the US. Has the time finally arrived for a new – and more secure – form of digital identity?
A secure, universal identifier is intuitively appealing, but soon runs up against a couple of harsh realities. From a security point of view, repeated use of the same identity is a no-no. Regardless of the technical security underlying any solution, breaches can and will happen – probably as a result of human error. The more systems there are involving a single identity, the more likely a breach and the more devastating the consequences.