Lucas123 tells us that a backup tape lost by Iron Mountain reportedly contains credit card information from 650,000 customers. The unencrypted tape also holds Social Security numbers for 150,000 customers. Quoting the Computerworld Article: "Although J.C. Penney was the only company that Jones would confirm as affected by the missing tape, that retailer accounts for just a small percentage of all accounts that were compromised. In total, 230 retailers are affected by the breach. 'Clearly that number includes many of the national retail organizations,' he said."