The Public Interest Registry will add an extra layer of security known as DNS Security Extensions (DNSSEC) to the .org domain in June -- a move that will protect millions of non-profit organizations and their donors from hacking attacks known as cache poisoning.

In a cache poisoning attack, traffic is redirected from a legitimate Web site to a fake one without the Web site operator or end user knowing. Cache poisoning attacks are the result of a serious flaw in the DNS that was disclosed by security researcher Dan Kaminsky in 2008.

DNSSEC is an emerging Internet standard that prevents cache poisoning attacks by allowing Web sites to verify their domain names and corresponding IP addresses using digital signatures and public-key encryption

More: http://www.computerworld.com/s/article/9169419/