[dwd]

1) Customers, probably not. Competitors I would not be so sure they wouldn't have look.

2) This is not specific to the data that underlines consumer credit scoring; a broker could be selling products derived from data on historical house prices or car sales for example. A competitor might use it to compare and validate their own dataset or simply have a look. Third party investigators, journalists, etc though could have a field day fact-checking it.