Jacoby said companies of any size could take advantage of the service, provided they are categorized as critical infrastructure. Pricing is left up to the provider.
While important to defend against, zero-day vulnerabilities are a small portion the exploits used in attacking the computer systems of companies. Most break-ins occur with the hacker using known vulnerabilities in software that hasn't been patched.
"There has to be a much more holistic approach," Barger said. "The problem is bigger than just zero-day."
The DHS plan stems from an executive order issued by President Barack Obama in February. The order required government agencies to put systems in place for sharing cyberattack information with private industry.
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