Hazard and operability study
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3
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Search complete. 3 mentions across 3 episodes found for "Hazard and operability study".
Oct 8, 2026
Bryan SingerHOST
... to look for are there cyber initiating causes that can get us to that safety consequence? And you're gonna find there's quite a few often because the consequence has been modeled, but the likelihood of that actually occurring is done in a probabilistic, like failure on demand, or looking at entropic hardware fault.
Bryan SingerHOST
And, you know, if you go through and you look at those, I mean, a great place to, to start, at least that I have found, is start with the safety study C&Es, HAZOPs, LOPAs, whatever you've done in the past.
Bryan SingerHOST
And if you can go to a cause and you can find a cyber initiating cause that's also associated with it, from there you need to start back modeling and go, "Okay.
Bryan SingerHOST
Well, now how difficult would it be for a intentioned attacker to be able to get to this level?" So, um, there's also other studies we do, like cyber PHAs, for example.
Bryan SingerHOST
... to look for are there cyber initiating causes that can get us to that safety consequence? And you're gonna find there's quite a few often because the consequence has been modeled, but the likelihood of that actually occurring is done in a probabilistic, like failure on demand, or looking at entropic hardware fault.
Bryan SingerHOST
And, you know, if you go through and you look at those, I mean, a great place to, to start, at least that I have found, is start with the safety study C&Es, HAZOPs, LOPAs, whatever you've done in the past.
Bryan SingerHOST
And if you can go to a cause and you can find a cyber initiating cause that's also associated with it, from there you need to start back modeling and go, okay, well now how difficult would it be for a intentioned attacker to be able to get to this level? So, um, there's also other studies we do like cyber PHAs, for example.
Bryan SingerHOST
I've about, I, I've, I've written another procedure on that, and let's not, you know, get into that.
James JunkinHOST
Do you know?
Logan F. MartinHOST
My, my guess is that the system safety folks, the people who actually work on, on looking into how things are built, the design process, the HAZOP process, those people were probably downsized with many, many of the QA/QC pr- uh, inspectors that they talk about.
Logan F. MartinHOST
Th- those are the places where they made the cuts.
Logan F. MartinHOST
I, I don't remember them talking directly about workplace safety in this film, but very much about, you know, all those people that were, were raising alarms and flags and stuff as the process were going.