SMS Interception

I'm sure it would be illegal, but as far as I'm concerned I'm not sure it would be that easy to intercept SMS; I've never been worried about it.

 

I'd have to say he's just blowin' smoke...I think you'd have to first be in range to intercept the transmission from here phone/mobile device w/ some sort of scanner that could monitor the particular frequency of the device...and then, especially if she's on GSM, it's be almost impossible to decrypt it...I doubt you'd find too many people other than the government spook agencies w/ this level of know-how and technology...

So, if he's in the CIA or NSA, maybe she should worry, otherwise, I'd just file some papers w/ the local courts to keep him away...haha...

Chris

 

Agreed Much better explanation than me, though!

 

Well, if she's on certain providers *cough*alltel*cough* all you need to do is be in her SID with a phone programmed with her phone number. Usually you can see any and all SMS messages that are sent to (not from) her phone, including VM notifications.

 

You have got to be joking!

 

Not at all. I've done it before.

Not just that, if you know a person's billing zip code (not so hard, just try the common ones for their exchange) you can reset their VM passcode to 9999 via 611 automated CS. Get the voicemail backdoor number, and voila you're in. Listen to their messages, change their greetings, do what you want.

Security at Alltel is insanely lacking.

 

tragic,
Could you elaborate, please? For a phone to be truly programmed the ESN for the phone would have to be in the provider's database as well as the associated phone number programmed into the phone. On a CDMA system, such as Alltel's everything is scrambled unless the phone knows the right code.

I don't doubt your voicemail backdoor scenario, however. That is entirely plausible.

 

It doesn't work with US Cellular, but with Alltel it does (both are CDMA). I've tried it several times and it works, at least in my area. Two phones being registered with the same number, ESN's be darned, will both get text messages sent to that number.

 

Well if you find some one with the right tools it is VERY possible to clone a phone. Nextel has the worst problem with this because of the smart card technology they began with. Any one with just some idea of how to use a pc and a $70 smartcard reader/writer could copy the card and then cut the card out to fit. They have fixed the easy clone problem, now it works with phone books but I have seen cloned SunCom phones real big deal for a while in the Roanoke and Lynchburg, VA area. And I have seen cloned CDMA phones for yes Alltel, US Cellular, & Sprint (Ntelos). These take a lot of time and know how, oh yeah money quite a bit to clone a CDMA but it can be done. Next thing is ever switch phones upgraded or what ever and received the same text messages on both phones. That is considered a soft clone or software copy. Can’t do much sending of anything but you can receive almost anything. But a cloned cell is very traceable if people are stupid enough to call outbound. It kind of sends up a red flag form hell when someone calls and both phones register in the network. This is most of the time a counterfeiting ring or someone trying to sell a phone for a throw away operation.I wouldn't lose any sleep over some dip stick like your girl friends ex he would get caught easily if he cloned her phone and powered it on during an incoming call.

 

yes, you can intercept txts with alltel as long as your in the local sid as the same person. Its been about a year since i did it, but just now tried it and ... still works. sad.

 

Wow, I didn't think anything like that was possible. That's bad!!!
I guess it has it's good sides, like when you want to know who writes what to your girlfriends phone or something like that :biggrin:

 

The voicemail thing I believe as well, that's possible, but the SMS thing would be scary!

 

The Voicemail loophole is something that should not even be open either. U.S. Cellular asks us for the last four digits of our SSN to even hear how many minutes we've used, much less do something as major as change VM passcode.

 

T-Mobile doesn't require anything(neither SS nor Zip Code) in order for you to hear your minute usage, Verizon requires your Zip Code for checking your balance and minute usage. Sprint, I believe, requires SS.

 

I wonder if pictures would be vulnerable too?

 

Clearly, the thing to do is have the phone number changed and don't give it to that shiftless gormless little worm. Then you're OK, at least somewhat.

I agree, though, I'd file suit for a restraining order and make sure that little conversation makes it into the discovery phase. I could see a judge banning the guy having a mobile phone for that (well, the case in question was in Canada, but still...)

That said, I think the guy's probably blowing smoke up your @$$.

 

Well, the problem is that in order to clone a SIM card, you must get your hands onto that SIM card!

Rgds,
Joshua

 

I :smokin: have done this as well! The switch (Lucent 5ESS) is looking for the ESN of the phone associated with the particular DN that the message was sent to. If two phones in the same area have the same ESN and DN, then they both shall receive the SMS...[/I][/I]

 

How would one go about this?

 

I believe this is some sort of flaw with CDMA in that if you have 2 phones programmed with the same number on the same system, and there is a sms message sent out, or even a voice mail notification, both phones will show it. I have played around with this before when I had service with Sprint, and on a couple of occastions, the phone that was not the current phone on the account recieved an incoming call!!!! I have not tried that with my Verizon phone yet, but I have an older phone here, I will dig it out and see what happens.

 

This is true and also happens on TDMA equipment if programmed with the correct home SID and MDN/MIN. However, I have not experienced that you can see the message, only the notification.

 

IF YOU GET CAUGHT doing what you're talking about you're looking at fines and even jailtime (illegal wiretap). Also if a wireless carrier is that loose with it's customer information that's a great way to be heavily fined

 

Just a reminder since people seem to be focusing on voicemail messages... the original poster's question pertained to SMS (Text) messages, not voicemail... since it's been many posts since text messages were discussed...

 

Can you tell me exactly how this is done? Can this be done if one phone is Alltel and the other is Verizon?

 

No. Both have to be Alltel.