The company that oversees Web addresses ending in .org said Wednesday it was introducing extra security measures to guard against identity theft. .Org, which is monitored by the Washington-based Public Interest Registry, is the first generic domain name system (DNS) to adopt the extra measures, but others, such as .com and .net, are expected to follow. Eight million websites use the .org suffix, which is one of the Internet's original domain names, established in 1985. .Org is frequently used by nonprofit groups and hosts many credit unions' online banking services, making it a target for fraudsters who want to tap into bank accounts or donations being made online to charities and other organizations. The new DNS security measures will authenticate the origin of data on .org websites, ensuring its integrity, the Internet Corporation for Assigned Names and Numbers said during a week-long meeting in Brussels.