CIO panel to cut scope of IT security review

Draft CIO Council Information Technology Security Assessment Framework

A measurement tool intended to help agencies analyze the management of their

information security programs is being scaled back after agency officials

and security experts questioned whether it could also measure the effectiveness

of those programs.

The CIO Council's security committee started development of its Information

Technology Security Maturity Framework late last year after Rep. Stephen

Horn (R-Calif.) announced his intention to grade agencies' security postures.

Horn announced grades last week , giving a government- wide grade of D-minus, but the framework is far from complete.

After working with the National Institute of Standards and Technology's

Computer Security Division, the committee released a draft of the framework

for general comment in July. Reactions were generally favorable, and the

committee plans to release the first official version in October. But it

will likely cover only the first three levels of assessment — the agencies'

plans to secure their systems and early implementation — and the rest will

be left for future improvement, said John Gilligan, committee co-chairman.

"We will continue to evolve the framework," he said.

The first real criticism came from the General Accounting Office, which

has developed its own metrics for measuring agencies' security for audits

that focus not only on whether agencies have plans, but also on whether

the plans are working. The framework, GAO said, did not pay enough attention

to whether the plans are working. "They felt the initial draft had done

a good job of identifying process but could be stronger in identifying effectiveness,"

Gilligan said.

The Computer System Security and Privacy Advisory Board, a government/

industry group that advises NIST, Congress and the Office of Management

and Budget, last week sent a letter to the committee expressing concerns

with the framework's assumption that good processes equal good outcomes.

"The problem with that assumption is that demonstrating its truth would

require some kind of scientific experiment.... It is just very hard to prove,"

said board member Stephen Lipner, manager of Microsoft Corp.'s Security

Response Center.

The committee held a workshop Sept. 15 to review the changes to the

framework. Changes will include cutting back on the higher levels of assessment,

which are "too fuzzy" and need to be better defined, said Marianne Swanson,

a computer specialist at the NIST Computer Security Division who has been

leading much of the work on the framework.

NIST will also work to issue more specific guidance on the "basic requirements"

for different maturity levels, Swanson said. NIST has already provided draft

general guidelines, but the future requirements will likely be based on

several NIST special publications, GAO guidance, and OMB's Circular A-130

Appendix III, which outlines federal requirements for information security.


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