This is complete and utter garbage. There is no solid evidence to back this theory of the breach. It is still too early to tell exactly what data was leaked and how. We simply won't know until the security consultants auditing Equifax's systems publish a report (or otherwise publicize their results).
Most people aren't going to be tuned into the leak the same way that we are on HN, they've still got their special place in a government-sponsored near-monopoly, and big companies have the resources to deflect blame and hunker down to weather the storm.
Remember the Deepwater Horizon spill and how angry people were at the time? These days, a large majority probably don't remember the details or even the name of the bigco responsible.