What the Web knows about you: Via computerworld

She had me at hello ... or just about. Our conversation had barely started when privacy activist Betty Ostergren interrupted me to say that she had found my full name, address, Social Security number and a digital image of my signature on the Web.

I had set out to discover just how much information I could find about myself online, and Ostergren, who runs the Virginia Watchdog Web site, was my very first call. If this was what could be uncovered in just a few minutes, what else would I find? Quite a bit, as it turns out.

What information is available about you in cyberspace? Where does it come from? What risks does it present and what, if anything, can you do to protect yourself? To answer those questions I decided to use my own identity, Robert L. Mitchell, a national correspondent at Computerworld, as my research subject.

Starting with the information Ostergren had turned up about me, I spent a few weeks combing through more than two dozen public and private resources on the Web and visiting many other Web sites to build a dossier on myself. I conducted both free and paid searches. I contacted a private investigator for tips on my investigation. And I spoke with data aggregators and privacy experts.

I quickly discovered that while the quantity of publicly available information about individuals to be found online is vast, it is riddled with inaccuracies. For example, I changed my primary residence more than a year ago, but many databases online still have my old address. In other cases, the information is just plain wrong.

[...]

In the county where I live, legal documents from 1975 and on have been scanned and placed for public viewing on the Web. No registration or payment is required to view those records, although there is a charge to print official copies. The database includes thousands of records on New Hampshire citizens, including tax liens, federal liens, divorce papers, financing statements, military discharge papers, death certificates -- even a mobile home warranty. Any legal document filed with the registry is fair game.

In these records I found names, addresses, Social Security numbers, dates of birth, signatures, children's names, educational backgrounds, blood types, work histories and other personal data. Newer mortgage documents no longer contain Social Security numbers (mine was from 2001), but many other documents still do -- including death certificates and tax liens. In my case, fortunately, just one document on file -- the old mortgage -- contained my Social Security number.

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