What is a Safety Instrumented System?

A Safety Instrumented System (SIS for short)  is used in many process plants to ensure continued safe operation of the process. In case of any disturbance that is likely to result in an unwanted incident the SIS automatically brings the process to a safe state and prevents loss of life, asset damage and environmental damage. For process plants that handle hazardous, toxic, explosive or other similar materials, Safety Instrumented Systems  prevent unwanted incidents from happening. What is a Safety Instrumented System? In an earlier tutorial, we explained what a Safety Instrumented Function (SIF for short) does. In case you have not read it, we encourage you to do that now. A Safety Instrumented System can be thought of  simply as a collection of Safety Instrumented Functions. Take a look at the diagram shown here. It shows three Safety Instrumented Functions (SIF1, SIF 2 and SIF 3). All of these safety …

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NIST Guide to ICS Security- Call for comments

The National Institute of Standards and Technology (NIST) that is a part of the US Department of Commerce has invited public comments to update the existing NIST Guide to Industrial Control Systems (ICS) Security, SP 800-82 Rev 2 to SP 800-82 (Rev 3). The deadline for comments is May 28, 2021. An Initial Public Draft of the update, which will be published as SP 800-82 Rev. 3, is scheduled for a late 2021/early 2022 release. The original document was published in the year 2015 and the threat landscape as well as what we refer to as Industrial Control Systems have changed drastically. What new stuff should be included in SP 800-82? NIST is aware of changes to the threat landscape regarding ICS security and also about what really can be considered as an Industrial Control System. and therefore are in the process of updating this guide. They have invited public …

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Industrial Cybersecurity Trends | What to expect from ICS security in 2021 and beyond?

Abhisam recently published a report on the State of Industrial Cybersecurity in the year 2020 and the road ahead in 2021. The report was compiled by contributions from several different experts from various industry segments, who are individually having at least 25 years of experience in their own domains as well as having  deep knowledge about Industrial Cybersecurity. To understand the basics, please see this basic Industrial Cybersecurity guide here. We received feedback from several sources that they highly appreciated the report and found it useful to get a perspective of ICS security trends today. The report can be freely downloaded from the link above. You can use it for any non-commercial use with proper attribution. One of the contributions was from the Abhisam management. We are pleased to post an excerpt from it here, which regards what to expect in the field of Industrial Cybersecurity in the year 2021 …

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