Note that Google proactively protects users by forbiding the query 100000000..999999999 (that's the full SSN range). It also bans a varity of searches for credit card numbers. However, using the wider range allows one to still find socials, granted with some false positives.
Saturday, October 28, 2006
Finding Social Security Numbers with Google
Google has a helpful syntax x..y for searching web pages with numbers between x and y. This feature, combined with the stupidity of the general public, results in social security numbers being findable: inurl:resume ssn * 10000...99999999.