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Marakanis
Fire-eater
Joined: Jan 11, 2009
Posts: 2948
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 Posted:
July 03, 2009 - 01:31 PM |
 
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| zanderion wrote: |
| Get an anonymous pre-paid sim? |
I think Bing mentioned he was doing that, but the hassle of switching the sim card and remembering which one was in there was quite the pain.
The consensus was that you shouldn't cheap out on something like that. Just get a whole prepaid phone. |
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zanderion
Barker
Joined: Jan 29, 2008
Posts: 170
Status: Offline
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July 03, 2009 - 01:55 PM |
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well that too but sometimes the 2nd phone is more telling! |
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Marakanis
Fire-eater
Joined: Jan 11, 2009
Posts: 2948
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July 03, 2009 - 02:00 PM |
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cantcheckemailnopw
SuperStar
Joined: Dec 27, 2006
Posts: 1481
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July 03, 2009 - 02:24 PM |
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You can get a 2 sim phone for under 1000RMB |
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Marakanis
Fire-eater
Joined: Jan 11, 2009
Posts: 2948
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July 03, 2009 - 02:26 PM |
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Neat, how's that work? A switch or something? Got a link? |
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victorinchina
Board Royalty
Joined: Jan 17, 2009
Posts: 7075
Location: Shanghai
Status: Offline
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July 03, 2009 - 02:34 PM |
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The ones I've seen works like this; when you switch the phone on, you get to chose which sim you want to use. Which IMO is a little lame, seeing that it is not very far from just switching the cards in the first place.
Maybe today they are improved, I don't know.
Anyway, that won't really help if you don't want your partner to read your messages. I would still go with the 2 different phones solution, and make sure the cheating one was with password and only on when something was about to take place. Oh, and keep it out of reach of your partner. At work or somewhere she won't look.
(I learned the tricks from all the Taiwanese guys back at my old job in Shenzhen. They seem to be masters of cheating on the wifes.  ) |
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compsolutions
Rocker
Joined: Mar 07, 2009
Posts: 692
Location: Shanghai
Status: Offline
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July 03, 2009 - 02:41 PM |
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Sims can be cloned fairly easily here with the right tools.
About 300rmb worth of tools/software
Depending what revision sim it is, depends how long it takes to copy. Never ones take longer.
Once you have a cloned sim, you are essentially the same as the other phone for all intents and purposes.
Taobao has several vendors selling these.
Other ways:
Special sms message with software attached.
(Highly phone dependant, software dependant)
Ref: http://www.techworld.com/news/index.cfm?newsID=7425
Listen in on the signal to the cellphone tower.
Its possible to eavesdrop on SMS traffic for the particular GSM Base Transciever Station
This can be done with reprogrammed phones, or specialized hardware.
I'm pretty sure this is the method they were using in Germany to intercept the bank sms's.
Place yourself near the banks transmission tower, and start listening...
Ref: http://www.h-online.com/security/Manipulated-Nokia-phones-intercept-SM S--/news/113126
The weak link in the chain - social engineering..
Pay someone for a list of all the SMS's, probably the easiest non technical method.
If anyone is interested in more details, let me know I can dig something up. |
_________________
China Hosting, IT Support - http://www.computersolutions.cn | Web Design - http://design.computersolutions.cn | iPhones, Fridge Lingo Magnets (Talking to your Ayi, Sex in the City...) and other cool stuff - http://www.iwantone.cn |
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Shangstar
Fire-eater
Joined: Feb 07, 2008
Posts: 2787
Location: Spitland
Status: Offline
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July 03, 2009 - 02:51 PM |
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wow, so would these devices work in the west? Just asking of course |
_________________
Charles Darwin: Differences between humans are differences in degree, not differences in kind |
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compsolutions
Rocker
Joined: Mar 07, 2009
Posts: 692
Location: Shanghai
Status: Offline
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July 03, 2009 - 02:53 PM |
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compsolutions
Rocker
Joined: Mar 07, 2009
Posts: 692
Location: Shanghai
Status: Offline
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July 03, 2009 - 02:56 PM |
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Which devices?
Also this goes over the basic (in)security:
http://www.nowsms.com/discus/messages/132/260.html
The SMPP protocol does not support any form of encryption. Sessions are completed in plain text over TCP/IP (so if security was a concern, you may need a private line or VPN connection to the operator SMSC ... oddly enough it seems that I see a lot of VPNs used for UCP/EMI connections, but not so much in the SMPP world).
In a GSM modem interface, messages are sent out over the air ... to the operator SMSC ... and then sent back out to the recipient over the air.
Of course, you have the same "over the air" issue on the receiving side however the message is being sent.
If we go back to the SMS hack idea.
Some further talk about that here -
http://www.lexa.ru/security-alerts/msg00776.html
Seems thats probably the way to go, at least for devices of a particular nature / software - eg iPhones. Its similar to Windows - once you have enough of a particular species you can target them. |
_________________
China Hosting, IT Support - http://www.computersolutions.cn | Web Design - http://design.computersolutions.cn | iPhones, Fridge Lingo Magnets (Talking to your Ayi, Sex in the City...) and other cool stuff - http://www.iwantone.cn |
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leidelaohu
Board Lord
Joined: June 11, 2007
Posts: 5751
Status: Offline
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July 03, 2009 - 04:59 PM |
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| compsolutions wrote: |
| ... once you have enough of a particular species you can target them. |
One of the drawbacks of a monoculture, eh ? |
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compsolutions
Rocker
Joined: Mar 07, 2009
Posts: 692
Location: Shanghai
Status: Offline
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July 03, 2009 - 05:53 PM |
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Exactly.
Some of the common tools / hardware needed is here -
http://www.simmk.net/
Looks like a thriving industry in copying phone cards apparently.
woron_scan and simscan et al still in use.
I took a brief look at the state of things a few weeks ago, although more from a satellite perspective - the firmware for my clone DM800 could do with an updated security sim, so I was looking into it for that perspective.
This is going to be meaningless for most people who aren't interested in this though. |
_________________
China Hosting, IT Support - http://www.computersolutions.cn | Web Design - http://design.computersolutions.cn | iPhones, Fridge Lingo Magnets (Talking to your Ayi, Sex in the City...) and other cool stuff - http://www.iwantone.cn |
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tomahawks
Reacher
Joined: May 20, 2009
Posts: 236
Status: Offline
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July 04, 2009 - 11:30 AM |
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Compsolutions,
Clear as mud, thank you. Now what about for us for non-boffins? |
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Therealme
Seeker
Joined: Oct 22, 2008
Posts: 42
Status: Offline
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July 04, 2009 - 01:11 PM |
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My friends confirm it is possible and that any or most SIM cards vendor at the railway station can do it for RMB 500/number for the last month SMS data.
Technology+right tools(money/guanxi,etc) everything is possible.
Interesting from the link given by computersolutions, I learned that one SIM card can have up to 12numbers. |
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