When I went to set my goals for 2019, I set both personal and professional goals. One of my professional goals is to clean off my desk, but another is to get more people to think about functional safety before an accident occurs, instead of when they are normally…
exida explains Blog
- by Loren Stewart, CFSE
- Thursday, January 31, 2019
- Functional Safety
Setting Goals for 2019: Are You Thinking About Functional Safety?
- by Dr. William Goble, CFSE
- Thursday, January 24, 2019
- Certification
Who gives exida the authority to publish SILSafeData?
SILSafeData contains upper and lower bound ranges of dangerous undetected failure rates for many automation devices. It was created by exida using statistical analysis of FMEDA failure rate predictions. The component database used in the FMEDAx tool is based on…
- by Ted Stewart, CFSP, exidaCSP
- Thursday, January 17, 2019
- Industrial Cybersecurity
Cyberattacks Succeed Where Humans and Systems Are Weak
Have you noticed that over the last several years, cybersecurity seems to be “trending?”
Companies of all sizes are starting to learn how to prevent, or at least minimize, these attacks. They hire third-party experts and attend trainings to learn more about the human and system weaknesses that are…
- by Dave Gunter
- Tuesday, January 08, 2019
- Industrial Cybersecurity
Does Your ICS Service Provider Need Training?
Today’s owner operators and lease operators of industrial production facilities frequently employ service providers for projects and upgrades, as well as operations and maintenance. These contractors often travel to many sites, carry their own copies of source code and files, and use multiple PCs with multiple engineering tools for…
- by Robert J. Michalsky
- Thursday, December 13, 2018
- Industrial Cybersecurity
Bridging the OT / IT Cybersecurity Gap
Personnel responsible for protecting organizational assets within Operations Technology (OT) groups would seem to have the same mission as those responsible for protecting organizational assets within Information Technology (IT) groups, and be tightly aligned. Spending any amount of time with Industrial Control System (ICS) clients, however, shows that is…
- by Patrick O'Brien
- Thursday, December 06, 2018
- Industrial Cybersecurity
Cyber Risk Assessments and Security Level Verification: Security Level Verification (Part 3 of 3)
The exposure of industrial facilities to cybersecurity threats has never been higher. An analysis performed by IBM security found that the number of attacks on SCADA systems increased 636% from 2012 to 2014, with 675,816 cybersecurity incidents in January 2014 [1]. Finding an effective method for evaluating the current…
- by John Yozallinas, CFSE
- Tuesday, December 04, 2018
- Software
Who needs sliced bread? We’ve got ARCHx!
I’ve heard this phrase so many times in my life… “<Something> is the best thing since sliced bread.” I personally can’t remember a time when sliced bread was not available, but I certainly remember going to the deli and having them use the slicing machine before handing me a bag…
- by Dave Butler, CFSE
- Thursday, November 29, 2018
- Certification
Comparing the IEC 62443 Software Engineering Process to IEC 61508: Where Do They Overlap?
With the appearance of malware and nation state attacks on Industrial Control Systems (ICS), such as the Stuxnet (2010), Industroyer (2016) and TRITON (2017) attacks, the IEC 62433 standards are gaining wider attention.
While the potential targets to attack in an ICS system are many-fold, one plant asset that…
- by Dr. William Goble, CFSE
- Tuesday, November 27, 2018
- Certification
Functional Safety Certification Started with Logic Solvers
IEC 61508 functional safety certification began in the 1990s. As I recall, the only organizations doing this work in those days were TÜV Rheinland and TÜV Product Services (now TÜV Sud). These two companies remain competitors.
Functional safety certification started with logic solvers. Some engineers and regulators at the…
- by Patrick O'Brien
- Tuesday, November 20, 2018
- Industrial Cybersecurity
Cyber Risk Assessments and Security Level Verification: Detailed Risk Assessments (Part 2 of 3)
The exposure of industrial facilities to cybersecurity threats has never been higher. An analysis performed by IBM security found that the number of attacks on SCADA systems increased 636% from 2012 to 2014, with 675,816 cybersecurity incidents in January 20141. Finding an effective method for evaluating the current level…
- by Steve Gandy, CFSP
- Thursday, November 15, 2018
- Functional Safety
Are You Undertaking Periodic Personnel Performance Assessments?
One of the changes that was made in 2016 to the IEC 61511 standard was the inclusion of periodic personnel assessments (clause 5.2.2.3), whereby a procedure is required to manage the competence of all those involved in the SIS lifecycle; “periodic” assessments are to be carried out to document…
- by Dave Johnson, CFSE
- Tuesday, November 13, 2018
- Industrial Cybersecurity
Preventing Cyberattacks by Following Practical Guidance in IEC 62443
Isn’t it frustrating when you experience an event that disrupts operations and then discover it could have been prevented? Very often a detailed analysis will reveal that a combination of (preventable) mistakes and unknown factors caused the incident. Training can help the mistakes, but dealing with the unknowns is a little…
- by Jeff Davis
- Thursday, November 08, 2018
- Industrial Cybersecurity
IACS Cybersecurity IEC 62443: Agile Lifecycle and Documentation
Industrial Automation Control Systems (IACS) Cybersecurity based on IEC 62443 was created to be compatible with agile development methodology. The standard deliberately talks about processes and not phases, such as those in the waterfall model. The processes defined can be met simultaneously and are, most likely, already being followed…
- by Dr. William Goble, CFSE
- Monday, October 29, 2018
- Certification
Using SILSafeData to Check Your Failure Data Source
www.SILSafeData.com is a complimentary resource that contains the upper and lower bounds failure rates for many categories of automation equipment, as well as the methodology used by exida to derive the numbers.
Many of you have asked how to…
- by Todd Stauffer
- Thursday, October 25, 2018
- Alarm Management
Bad Actor Knockdown: The “Whac-A-Mole” of Alarm Management?
As discussed in What do Nuisance Alarms, the 80-20 Rule, and Mental Models Have in Common?, there are typically a handful of alarm points (10 to 20) that create the majority of notifications (50-80%) to the operator (referencing the 80-20 rule). These nuisance alarms are affectionately called “bad…