The IRS is now getting more timely updates from the Social Security Administration and blocking electronic refund requests for those accounts, while the SSA has reduced some of the information, including addresses, on the index.

FORBES: IRS Tips Won't Protect You From Identity Theft Tax Fraud

Ebay, the online auction house, took the extraordinary step of blocking out electronic inquiries from Auctionwatch.com, which aims to scour all auction sites and post prices in an overarching service.

FORBES: Spiders and Lies