20 gas explosions in Massachusetts just now!!!

Mass Officials right now figuring out how to milk this disaster for all the money they can get ... the Massachusetts way - overtime for all Mass PD & Fire Fighters and any connected person ...till 2020 ... like the Highway Big Dig (Over spent by Billions ...)

On a system that large, it's quite likely that the main stepdown pressure regulator would be controlled with a PID loop via a PLC.

Most of those systems have zero security features, anyone with Allen Bradley software could do whatever they wanted with a few clicks if they had access to the network, which isn't necessarily easy since most of these SCADA systems are on isolated subnets... but bust a lock and gain physical access and it would be a matter of plugging in a cable and you're online.

But to look at the logic and actually know what to do, you'd need knowledge of the system to be able to really wreak havoc.

But still you would have to imagine that there would be rupture disks somewhere that would burst, or excess flow valves that would slam shut when the high pressure gas rocketed into the low pressure pipe.

This really shouldn't have been able to happen on a well engineered system, no matter how knowledgeable a person who was at the controls.

Is it true nobody has died? If so, that is a miracle in itself. I hope everyone is okay.

It's calculated in PSI. The lowest pressure mains are about 7 PSI and a regulator aren't needed is correct. High pressures lines run bout 100 PSI. I don't see how anyone can make that kind a mistake. After installing the line the proper procedure is to check the system for possible leaks. This doesn't explains why the system didn't automatic shut down due to pressure deferences or a sudden drop in pressure to to a major leak.


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yep.


the chemical weapons in Idbid hasn't happened yet...

This is a real possibility.


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On a system that large, it's quite likely that the main stepdown pressure regulator would be controlled with a PID loop via a PLC.

Most of those systems have zero security features, anyone with Allen Bradley software could do whatever they wanted with a few clicks if they had access to the network, which isn't necessarily easy since most of these SCADA systems are on isolated subnets... but bust a lock and gain physical access and it would be a matter of plugging in a cable and you're online.

But to look at the logic and actually know what to do, you'd need knowledge of the system to be able to really wreak havoc.

But still you would have to imagine that there would be rupture disks somewhere that would burst, or excess flow valves that would slam shut when the high pressure gas rocketed into the low pressure pipe.

This really shouldn't have been able to happen on a well engineered system, no matter how knowledgeable a person who was at the controls.

This why I call bullshit. If a High pressure line were attached to a low pressure line fine. When the multiple low pressure lines experienced ruptures there should be an immediate drop in pressure as seen on the high pressure line. Technology attached to the high pressure lines should recognize this pressure drop and immediately shut down.

There is much more to this story that we currently have.

This why I call bullshit. If a High pressure line were attached to a low pressure line fine. When the multiple low pressure lines experienced ruptures there should be an immediate drop in pressure as seen on the high pressure line. Technology attached to the high pressure lines should recognize this pressure drop and immediately shut down.

There is much more to this story that we currently have.

Lets just hope it stops here and no other communities are hit by this type of attack.

We all need to be very prepared for the worst case scenario's in our communities and keep the panic down to minimum.

Local Sheriffs and LEO's need to also get organized with trusted community members for plans of action ASAP! If you leave your community out it will destroy your plans and cause more problems and possibly overwhelm your community.

American citizen's be a part of the solution not the problem.

Prayer for all involved for safety and quick returns to their homes!!

But the high pressure line has a much greater capacity than the low pressure line, it may have been able to over pressurize the low line using only a small amount of it's nominal capacity.

Let's say that the high pressure line trips when it goes from 100 psi to 80 psi in 5 seconds. Perhaps the pressure drop when the line was opened was only to 85 psi and then returned to normal when the line was filled, and even with the pipes that burst... they may only have been a small percent extra flow on a high pressure backbone line.

And there are even higher pressure lines out there, I know gas turbine power plants are fed by 300 to 4000 psi lines, filling a small local low pressure grid may just be a drop in the bucket for them that would go unnoticed until it was too late.

On a system that large, it's quite likely that the main stepdown pressure regulator would be controlled with a PID loop via a PLC.

Most of those systems have zero security features, anyone with Allen Bradley software could do whatever they wanted with a few clicks if they had access to the network, which isn't necessarily easy since most of these SCADA systems are on isolated subnets... but bust a lock and gain physical access and it would be a matter of plugging in a cable and you're online.

But to look at the logic and actually know what to do, you'd need knowledge of the system to be able to really wreak havoc.

But still you would have to imagine that there would be rupture disks somewhere that would burst, or excess flow valves that would slam shut when the high pressure gas rocketed into the low pressure pipe.

This really shouldn't have been able to happen on a well engineered system, no matter how knowledgeable a person who was at the controls.

Lets just hope it stops here and no other communities are hit by this type of attack.

We all need to be very prepared for the worst case scenario's in our communities and keep the panic down to minimum.

Local Sheriffs and LEO's need to also get organized with trusted community members for plans of action ASAP! If you leave your community out it will destroy your plans and cause more problems and possibly overwhelm your community.

American citizen's be a part of the solution not the problem.

Prayer for all involved for safety and quick returns to their homes!!

This is a test, I repeat this is a test.

before 911 the City Plans for Buffalo were stolen from a small break in when things were still on a manual system. All the waterworks for Niagra Falls, power systems, everything they needed to understand the controls and systems in the US.

This why I call bullshit. If a High pressure line were attached to a low pressure line fine. When the multiple low pressure lines experienced ruptures there should be an immediate drop in pressure as seen on the high pressure line. Technology attached to the high pressure lines should recognize this pressure drop and immediately shut down.

There is much more to this story that we currently have.

Every site is different, you couldn't just get your hands on some documents and figure everything out.

You would need an expert in PLC logic and an expert in a particular type of control system for a particular type of utility to really do something like this, that could be the same person if they worked in that particular sector.

You would really need a state level actor to pull an attack off, unless it was an insider who worked on the systems.

But the high pressure line has a much greater capacity than the low pressure line, it may have been able to over pressurize the low line using only a small amount of it's nominal capacity.

Let's say that the high pressure line trips when it goes from 100 psi to 80 psi in 5 seconds. Perhaps the pressure drop when the line was opened was only to 85 psi and then returned to normal when the line was filled, and even with the pipes that burst... they may only have been a small percent extra flow on a high pressure backbone line.

And there are even higher pressure lines out there, I know gas turbine power plants are fed by 300 to 4000 psi lines, filling a small local low pressure grid may just be a drop in the bucket for them that would go unnoticed until it was too late.

They are using the storm as a cover for a test. This was a blatant cyber attack from Russia China or Iran. I call that an act of war & I hope this is truthfully investigated and not forgotten. We are in a cyber war, who knows what we have done. I don't give a shit as long as we win!

Every site is different, you couldn't just get your hands on some documents and figure everything out.

You would need an expert in PLC logic and an expert in a particular type of control system for a particular type of utility to really do something like this, that could be the same person if they worked in that particular sector.

You would really need a state level actor to pull an attack off, unless it was an insider who worked on the systems.

Every site is different, you couldn't just get your hands on some documents and figure everything out.

You would need an expert in PLC logic and an expert in a particular type of control system for a particular type of utility to really do something like this, that could be the same person if they worked in that particular sector.

You would really need a state level actor to pull an attack off, unless it was an insider who worked on the systems.

WHY is everyone getting excited by this...its just a few gas explosions caused by a crap company.

Move along...nothing to see here.