undoIT
join:2008-08-26
| Cell Phone as Modem / Tethered Security
I know that is possible to intercept data that is being transmitted over a wireless router. I use my cell phone as a modem and have it tethered to my laptop. Does anyone know if it is possible to do any packet sniffing in this scenario?
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JohnInSJ
Premium
join:2003-09-22
San Jose, CA
 ·Comcast
| No more so then any other use of cellular data. It would be less easy then wifi where off the shelf hardware is available, but it is a radio transmission.
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Nerdtalker
Working Hard, Or Hardly Working?
Premium,MVM
join:2003-02-18
Tucson, AZ
clubs:
| reply to undoIT
Depends on a huge variety of factors. The older cyphers used in the GSM standard are broken (there's a lot about this if you care to read about it, but it winds up being tied to former soviet satellite states that purposefully crippled a specific subset of GSM ciphers for eavesdropping).
That said, the majority of 3G UMTS and EvDo traffic is untrivially hard to decode. The problem is the kind of thing you throw an entire room full of Nvidia Tesla GPGPUs at and *hopefully* you get *something*.
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