Also found PRISM/CBSD on my Experian report. I disputed. In one day Experian replied, saying they "contacted" creditor (which can be by "automatic verification system") and have "updated" my report. "Update" only says that I dispute the info. There is no tel. #, only PO Box 6003, Hagerstown, MD 21747. Also received equity line offer & haven't applied, BUT the PRISM/CBSD entry on credit report says it's a revolving acct. I'm going to contact CA Atty. General, as many others are finding this mystery entry on their credit report.