SSNs on the internet

The Government Accounting Office studied the presence of SSNs on the internet and on government issued ID cards. They concluded that,

Few state agencies make records with SSNs available on the Internet; however, 15 to 28 percent of the nation’s 3,141 counties do place them on the Internet and this could affect millions of people. Overall, GAO found that the risk of exposure insurance and other identification cards issued under their authority.