I am wondering if anyone knows how the insurance companies are regulated? Do they have to keep our information confidential? I have sensitive information that I don't want to get out.

I would have to agree with piggleyt as well. Insurance companies are regulated by the state insurance commissioner and have to abide by all the privacy laws when dealing with customer's information. If you are concerned about your privacy or want to make sure that a certain agent is licensed in your state, you can look up your state's department of insurance website. For example, California's is http://www.insurance.ca.gov/ and it is a good resource for insurance information from car insurance to life insurance. Also it lets you look up agents in your area. It even lists the insurance codes that insurance brokers and companies must follow. It's a lot of information, but you are bound to find answers to privacy questions and concerns on the state's department of insurance website.