ISA-SP99 Getting Closer to Draft Standard

April 2, 2007

ISA”s SP99 standards development committee conducted a second round of voting on the draft standard, Security for Industrial Automation and Control Systems Part 1: Terminology, Concepts and Models. The

ISA”s SP99 standards development committee conducted a second round of voting on the draft standard, Security for Industrial Automation and Control Systems Part 1:
Terminology, Concepts and Models. The draft received enough votes to pass, but the committee will evaluate all comments and reissue another draft if necessary, according to ISA. This first standard will establish the context for all of the remaining standards in the ISA-99 series by defining a common set of terminology, concepts, and models for electronic security.

The planned Part 2 standard in the ISA-99 series, Establishing an Industrial Automation and Control Systems Security Program, is being prepared for its own second committee ballot in the coming months. This standard will provide guidance for developing a program for the security of industrial automation and control systems-including detailed guidance on process activities and key elements for establishing a cyber security management system.

In addition to the work on the Part 1 and Part 2 standards, ISA-SP99 has also established a new working group to develop a further standard in the series, Specific Security Requirements for Industrial Automation and Control Systems. This standard will define the characteristics of industrial automation and control systems that differentiate them from other information technology systems from a security point of view. Based on these characteristics, the standard will establish the security requirements that are unique to this class of systems. Valuable technical input into this standard is anticipated from related work within the International Electrotechnical Commission (IEC). Valuable input and support is also expected from key U.S. government entities including the Department of Homeland Security, the Department of Energy, Idaho National Laboratory, and the National Institute for Standards and Technology – all of which are supporting the ISA-SP99 initiative.

Beyond its work on the initial standards in the ISA-99 series, the committee is also planning to release a revised and updated technical report, first published in 2004, for committee vote. This technical report, Security Technologies for Industrial Automation and Controls Systems, focuses on identifying and evaluating currently available technologies for control systems security, covering areas including:
– Authentication and Authorization
– Filtering/Blocking/Access Control
– Encryption and Data Validation
– Audit, Measurement, Monitoring and Detection Tools
– Operating Systems
– Physical Security

Each technology is discussed in terms of security vulnerabilities addressed by the technology, typical deployment, known issues and weaknesses, use in the industrial automation and control systems environment, future directions, recommendations and guidance, and references.

ISA”s SP99 committee has over 250 members representing a variety of companies, organizations and expertise from across industry, government, and academia. The committee is focused on industrial automation and control systems whose compromise could result in endangerment of the public or employees, regulatory violations, loss of proprietary or confidential information, and national security risks. The concept of manufacturing and control systems electronic security is applied in the broadest possible sense, encompassing all types of plants, facilities, and systems in all industries.

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