This is a bigger issue than 'credit agencies have poor security'. This is an issue of 'standard authentication in the US is negligently weak'. Knowledge of a SSN and other public information should never be enough to authenticate any person. That means no credit issued based on that, no tax returns filed or viewed based on that, no checks sent based on that. The solution is not better security with credit companies.…
To this point: does “identity theft” really exist, or is this simply a reframing of banks, etc., completely failing at authentication?
In that the attacker is creatively operating the system, rather than really possessing magic knowledge.