Bloomberg News — One complication of hosting sites with addresses of specific countries or regions is that many of the registration providers don't use registry locks and other protective steps, said Paco Hope, a principal consultant with Cigital Inc.
"When you're a company like the New York Times or Twitter or Google, your stock in trade is the Internet, it's the service you offer, and that's why it makes sense to put in a lot more security," Hope said.
The rise in sophisticated hacking attacks is helping fuel a market for computer-security technology that is expected to exceed $65.7 billion this year, according to Gartner Inc.
Many companies that didn't prioritize a threat involving their DNS records are now rethinking that approach, SANS's Pescatore said.
"It's one of several Achilles' heels of using the Internet," he said.
— With assistance from Michael Riley in Washington and Douglas MacMillan in San Francisco.