Does Wiretapping Require Cell Company Cooperation?

decora writes "Recently the dictator of Belarus, Alexander Lukashenko, accidentally admitted to wiretapping journalist Irina Khalip. Khalip is the wife of Andrei Sannikov, one of the many opposition presidential candidates who was imprisoned after the election in 2010. I am wondering how Lukashenko did this? Can a government tap a modern cellphone system without the company knowing? Or would it require cooperation, like when AT&T and others helped the NSA perform warrantless wiretapping on Americans?"

Comments

Wasn't this the whole point of CALEA?

[Scareduck]

And isn't it the case now that stuff is embedded in all the major telecom hardware makers?

Re:Wasn't this the whole point of CALEA?

[TheGratefulNet]

even before calea, there was something similar.

they need to teach this in civics classes at school. people need to be told this, explicitly. at least then they can't say "I didn't know."

yes, hardware vendors cannot sell unless there are backdoors.

(the elephant in the room now waves 'hi' to us)

Re:Wasn't this the whole point of CALEA?

[bsDaemon]

Yes. I used to work for a company that made CALEA-compliance stuff. Can't talk about that, but most of the major infrastructure companies had CALEA-compliance stuff built in. It is my understanding, from what I learned while I was there (only about a year before moving on to slightly less creepy stuff), that those functionality has to be available to law enforcement remotely, without requiring active assistance from the telco in some cases. I believe that the majority of cases involve telco cooperation, but only a limited subset of employees are aware when a tap is in place.

I believe Verizon has a couple of hundred people on staff who's full-time job is to assist in compliance with lawful intercept requests and that the information on the existence of an intercept is not shared with other people in the telco.

However, the commentary in the summary shows a bit of naiveness on the part of the submitter. Lukashenko is basically the last of the hard-line Eastern Bloc-style dictators. Getting a wiretap on an opposition figure isn't hard when you run a police state.

Dictator

[bahurd]

I think the key word here is "dictator", as in you WILL do this wiretap....

Yes, quite easily

[Anonymous Coward]

if you have the money and contacts. Covered on slashdot as far back as 2003 at least ...

Basically GSM can be made to switch to A5/0 i.e. disable encryption by use of a commercially available "IMSI catcher" device. Originally these sent a spoofed degraded signal to the base station to make it think A5/0 was needed (it uses less bandwidth), these days it seems they just act as base stations. Cellphones automatically lock onto the strongest base station, and GSM security authenticates the handset only, so such rogue base stations are not technically difficult to make.

The "degraded signal" method implies that A5/0 also kicks in naturally in areas of bad reception and anyone with appropriate scanner hardware could monitor calls in that area. You'd still have to deal with the frequency hopping though.

Yes, and it only costs $40

[ketso]

GSM has horrible security and carriers aren't exactly doing their best to make their networks secure either. A while ago you needed relatively expensive equipment (around $1000-2000) to be able to sniff on the network, but it's now been done with a few very cheap phones. There's a very informative presentation (with video) here. For this to work, you need to be close to the person you want to eavesdrop on however.

why end this summary with a question mark?

[Anonymous Coward]

http://www.wired.com/threatlevel/2010/07/intercepting-cell-phone-calls/

does that answer your summary?

Re:No

[Alex Belits]

but in Belarus they still have PULSE dialing on their landlines

So does US. Tone dialing is convenient, but for the sake of compatibility, pulse is supported on all landlines. Plug a Model 500 phone into any analog phone outlet in US, and it will work.

Re:Tapping land lines?

[fuzzyfuzzyfungus]

If you have a gluttonous lust for ghastly, utterly banal, PR-drivelspeak concerning wiretapping, anybody on Cisco's "Lawful Intercept Mediation Device Suppliers" list is excellent reading.

Re:Kinda

[Jafafa Hots]

Actually it turns out the easiest way is simply to tell the corporation you want the information.

That's all it took here in the US and we were ostensibly a dictator-free country with laws against it. So in a country with a dictator, it's a no-brainer.

Look at Cisco/China etc.,

Expecting ethical behavior from a corporation is like a duck expecting a piggyback ride across a lake from an alligator.

Re:Kinda

[Fluffeh]

Expecting ethical behavior from a corporation is like a duck expecting a piggyback ride across a lake from an alligator.

Which is not to say that it will never happen it is just unlikely....?

Re:Kinda

[sortius_nod]

Why is this even a question for slashdot. A quick google will inform you that Belrus has a state owned telco.

Nuff said. They own the telco, they'd have access to all traffic across it.

Re:Anti-terrorism Laws legal tapping.

[Shotgun]

Ever since the world ended up going hell bent on terrorism laws (New World Order), all wire-tapping is legal with or without a warrant and you do not require any special permissions anymore if you work in law enforcement and a telecoms company need not know either.

The erosion of liberties guaranteed to you in the US Constitution as a result of the War on Terrorism simply pales in comparison to what you've surrendered due to the War on Drugs and the War on Poverty.