According to a draft document published by the NAIC Big Data (EX) Working Group in November last year, regulators were concerned about these questions related to carriers’ use of data analytics:

1. Do regulators have appropriate access to insurers’ models through the current rate filing process?
2. Are there any data variables that should be prohibited?
3. Should there be specific levels of correlation and/or causality for rating variables?
4. Are regulators seeing additional risk segmentation, and is this having a positive or negative impact on consumers?
5. Is there a need for additional regulatory oversight of data vendors?
6. Are there issues specific to a particular line of insurance?

Source: NAIC Big Data (EX) Working Group, “Regulatory Framework: Proposed Structure and Issues for Discussion,” Nov. 28, 2017 draft