I found this number for USAA online, and called to inquire about USAA property insurance. After navigating some menus, I was put on hold for 2 minutes before talking to a USAA agent in San Antonio. I inquired about USAA insurance, and was told that I must first become a USAA member, and membership was restricted to US military. Since I am retired navy, I qualified. After 20 minutes of my providing data, I was issued a USAA membership number. Then the agent collected data about the property I wanted to insure and gave me a quote. Within the hour, I had an email which confirmed my membership, and gave a link to the USAA online web page which shows the quote for insurance. I used the same membership number that they issued to me from the earlier conversation at telephone number (800) 531-8722 to set up an online account at USAA.com.This telephone number seems legitimate to me. Is it possible that a hacker could also use this number to scam people? I don't know.