Reply #12: Here's a tiny bit on it from a biased link but it gives the gist

[barb162]

"...Insurance Credit Scoring is based upon the belief that that there is a direct statistical relationship between financial stability and risk. In other words, the lower your insurance credit score, the more likely you are to file claims, inflate claims, commit fraud and commit arson. This score is based solely on information contained in consumer credit reports from Equifax, Experian, and Trans Union. This insurance credit score is then used in conjunction with motor vehicle records, loss reports, and application information to determine your insurance risk at a particular point in time. Some companies have also started using insurance credit scores to non-renew coverage regardless of whether a claim has been filed or premiums have been paid on time."
http://www.insurancescored.com/