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InvalidError

join:2008-02-03
kudos:5
reply to KrK

Re: How is this different than regular cell phone jamming?

said by KrK:

It also suggests that moving infrastructure like traffic signaling or emergency responders onto LTE exclusively is a very bad idea.

The MIT guys just happened to find a particular jamming sequence that was unusually effective. Other researchers will probably revisit other networks and find similar kryptonite for them.


KrK
Heavy Artillery For The Little Guy
Premium
join:2000-01-17
Tulsa, OK

Certain Infrastructure should always be hardwired.

It only brings up the same point again that wireless from a security standpoint is a risk. It may be easier and cheaper to control your traffic networks (or other networks) wirelessly... but that sets you up for the system to be compromised or jammed.
--
"Fascism should more properly be called corporatism because it is the merger of state and corporate power." -- Benito Mussolini


InvalidError

join:2008-02-03
kudos:5

Security-wise, wireless can be as secure as wired when properly encrypted. Critical wired infrastructure still needs to be adequately encrypted to prevent people from tapping into the wire and hijacking control.

For jamming, no miracle there... but unless you want to put a 1000km wire spool in every vehicle, hard-wiring them would not be practical


moonpuppy

join:2000-08-21
Glen Burnie, MD

said by InvalidError:

Security-wise, wireless can be as secure as wired when properly encrypted. Critical wired infrastructure still needs to be adequately encrypted to prevent people from tapping into the wire and hijacking control.

For jamming, no miracle there... but unless you want to put a 1000km wire spool in every vehicle, hard-wiring them would not be practical

Who cares how secure it is because when you jam the signal, it still doesn't work. And I bet you could get a few hundred people running around with jammers in their vehicles. Think New York City and its fleet of cabs. Quite a few foreigners driving them and just enough of them with a grudge against the US could mean a very bad day for NYC.

InvalidError

join:2008-02-03
kudos:5

said by moonpuppy:

Who cares how secure it is because when you jam the signal, it still doesn't work.

Most signaling infrastructure is autonomous and only needs communication to change its programming and report BIST or other results. If the communication is jammed, this is a non-issue but if it gets hacked, it can be a much worse issue so security is more important than jamming there.

Since it is not practical to wire moving vehicles, those have no choice but to use some form of wireless just like they have always been, not much of a change there. If LTE is jammed, they just have to fall back on their CB radios and punch things down by hand. If CB radio is jammed as well, they are no better/worse off than without LTE.

moonpuppy

join:2000-08-21
Glen Burnie, MD

said by InvalidError:

Most signaling infrastructure is autonomous and only needs communication to change its programming and report BIST or other results. If the communication is jammed, this is a non-issue but if it gets hacked, it can be a much worse issue so security is more important than jamming there.

Since it is not practical to wire moving vehicles, those have no choice but to use some form of wireless just like they have always been, not much of a change there. If LTE is jammed, they just have to fall back on their CB radios and punch things down by hand. If CB radio is jammed as well, they are no better/worse off than without LTE.

Wrong, if you disrupt enough nodes, the communication system will start failing and data will move very slowly through less and less nodes creating choke points.

And how many people still use CB? Even if people had them, their range is minimal and with a bunch of people going nuts, that will become useless in minutes.

Kearnstd
Space Elf
Premium
join:2002-01-22
Mullica Hill, NJ
kudos:1

not to mention those choked nodes could go down just from load itself. Going to guess even enterprise class routers have a fail point
--
[65 Arcanist]Filan(High Elf) Zone: Broadband Reports


InvalidError

join:2008-02-03
kudos:5
reply to moonpuppy

said by moonpuppy:

And how many people still use CB?

Just about every emergency response service (police, firefighters and ambulances) still does rely on CB for dispatching and reporting. I doubt governments will ditch spectrum reserved for emergency services any time soon.

CXM_Splicer
Looking at the bigger picture
Premium
join:2011-08-11
NYC
kudos:2

CB is a particular public radio band... public safety doesn't use it. They monitor it in some localities for emergencies but they don't use it for communications. You are thinking simply of 2-way radios.



KrK
Heavy Artillery For The Little Guy
Premium
join:2000-01-17
Tulsa, OK
reply to InvalidError

You can encrypt it, yes... but it still can be jammed.


moonpuppy

join:2000-08-21
Glen Burnie, MD
reply to InvalidError

said by InvalidError:

Just about every emergency response service (police, firefighters and ambulances) still does rely on CB for dispatching and reporting. I doubt governments will ditch spectrum reserved for emergency services any time soon.

Not even close. As explained, CB is a public use band.

And ask NYPD and NYFD how their systems worked on 9/11 when they lost the WTC complex. Most of their fancy digital communications were rendered useless in a matter of a couple of hours.