The recent Equifax incident was by all measures a significant cyberattack. As the press statement released by Equifax on September 8 highlighted, the data theft potentially impacted approximately 143 million U.S. consumers. To put this into perspective this represents nearly 70 percent of the U.S. working population.
However, we should not be surprised. RMS tracks data theft among other types of cyber events on an ongoing basis, and we have seen numerous events of this magnitude or larger over the last few years. This Equifax breach would have ranked just #7 on the list of the largest data breaches in the 2017 RMS Cyber Risk Landscape report.