"We have around 65,000 clients and 300,000 nodes globally and it is hard to get a hold of [patch cycles]."

Increased wireless access points, nonexistent perimeter security make organizations more open to attack, he said.

"People see firewalls as just speed bumps to regulate traffic, not for protection," Dorey said.

Three trends that will change Internet security over the next four years include the Jehrico Forum, (a global user community devoted to promoting open standards in security), accreditation through the IISP and the control systems certification.