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#121800 - 18/10/2002 18:18 Has my SIM been cloned?
AndrewT
old hand

Registered: 16/02/2002
Posts: 867
Loc: Oxford, UK
What are the chances that someone is somehow using a clone of my cellphone number or account?

I've been occasionally been receiving calls for years now from people trying to reach a (porn!) video rental store. Yesterday, because the caller was particularly chatty, I discovered the caller had MY telephone number written down or printed (not certain which) and had not simply mis-dialled. We cross checked the number and it was mine for certain he had there. He steadfastly insisted he had used the very same number to order the videos in the first place (that he was now calling to complain about). In fact, he was so sure that he insisted I was a part of a ruse to stitch him up with bad DVDs!

I pay little (almost no) attention to the telephone bill, it's always at (or slightly above) the normal monthly contract rate and I merely pay it without scrutiny. I wouldn't notice the odd additional calls granted, but I can say with a fair degree of certainty that nobody is milking my cellphone account.

I plan to do some searching on the 'net to try and get some background information on what hacks/exploits are available on cellphones before I speak with my network provider (Orange).

If anyone here can confirm or deny whether any of this is even realistically possible (as opposed to being hypothetical nonsense) I'd be very grateful.

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#121801 - 18/10/2002 18:46 Re: Has my SIM been cloned? [Re: AndrewT]
genixia
Carpal Tunnel

Registered: 08/02/2002
Posts: 3411
Are you sure it wasn't a mate of a mate winding you up?

I'd make the observation that if a porn rental 'store' was trying to rip you off with a clones SIM, then you'd certainly notice it. I'd also question why such a place would give a cloned number for incoming calls? Since Orange don't charge for incoming calls, it would make no sense. The only way that I could see that occurring as part of such a rip of is if the 'store' made an outgoing call to their customers mobile phone - and the number was then stored in the address book.

Either that, or your number is identical to one with a similar area code that *is* a porn shop and someone printed up a bad batch of cards at some point and hasn't realised.
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#121802 - 18/10/2002 19:18 Re: Has my SIM been cloned? [Re: genixia]
AndrewT
old hand

Registered: 16/02/2002
Posts: 867
Loc: Oxford, UK
Are you sure it wasn't a mate of a mate winding you up?

Valid point but I am completely certain it's not a wind-up.

I'd also question why such a place would give a cloned number for incoming calls?

I can't reasonably imagine why either. The only theory I can offer is these are illegal videos and traceability (or lack of) is important.

Either that, or your number is identical to one with a similar area code that *is* a porn shop and someone printed up a bad batch of cards at some point and hasn't realised.

That assumption, and the 'fun' element of...
me: "Oh, you mean the PORN videos?"
caller: "Er, yes"
... is the only reason I've not questioned this before.

What rattled my cage was the fact the caller had already (he claims) ordered/received DVDs via my number.

Something's wrong here I know. I can't figure out how, for example, how the seller made the original sale without me knowing about it.

I know for certain the seller is based in London and so are most (if not all) of his customers, I live in Oxford (about 30 miles away as the crow flies). I wonder if the cellphone provider's topography/geography could be a factor?

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#121803 - 18/10/2002 19:30 Re: Has my SIM been cloned? [Re: AndrewT]
tfabris
carpal tunnel

Registered: 20/12/1999
Posts: 31600
Loc: Seattle, WA
I wonder if the cellphone provider's topography/geography could be a factor?

In the US, I think it would be, yes. Dunno how it works in the UK.

For instance, imagine two cell phones with the same number, one based in the 530 area code, and one based in the neighboring 916 area code. The 916 number is owned by the video store.

Someone who lives in the 916 area code calls the video store without dialing the "916" area code, that's how they're supposed to do it. They do this for months, it works.

Then they decide they're tired of the awful service from their current cell provider and they buy a new phone at the mall which happens to be in the 530 area code. Or they move up the street and their land-line number changes to the 530 area code. Even if they understand this technically, they might not remember that they have to dial 916 to call the video store. So they get the schmoe in 530 instead.
_________________________
Tony Fabris

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#121804 - 18/10/2002 22:43 Re: Has my SIM been cloned? [Re: tfabris]
wfaulk
carpal tunnel

Registered: 25/12/2000
Posts: 16706
Loc: Raleigh, NC US
On a related note (it seems to be stupid-Bitt-stories night) ....

A few years back, I had a pager issued to me by my employer. For the sake of this conversation, let's say that it's number was 800-987-6543. Shortly after I got it, I started getting pages two or three times a day that would just be ``485'' and nothing else. Odd.

One day, I got a page that was ``4859195551212''. Noticing that it looked like that standard ``485'' that I'd been getting, plus what looked like a real phone number, I decided to give that number a call. Someone answered and I said, ``I believe someone there paged me.''

To which he responded, ``Oh. You must be Panasonic support.''

``Uhhhh.... No. What number did you dial?''

``1-800-987-6543-485''

``What?''

``I was told to call 1-800-987-6543-485.''

``Are you sure they didn't tell you to call area code 987, 654-3485?''

``What?''

``The number they gave you -- it's not an 800 number -- it's a standard long-distance number. Didn't you notice that there were three additional digits?''

``What??''

The conversation went on like this for another five minutes or so before I just gave up.

I continued to get similar pages, not all from the same guy. I'd call and make fun of people when I could deduce a phone number from their otherwise incoherent pages.

I finally had to get a new pager.
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Bitt Faulk

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#121805 - 18/10/2002 23:01 Re: Has my SIM been cloned? [Re: wfaulk]
tfabris
carpal tunnel

Registered: 20/12/1999
Posts: 31600
Loc: Seattle, WA
I'm enjoying your stories, tonight, Bitt, those were two really good ones.

My wife's cell phone voicemail continues to get long messages from Loren. No one talking on the messages, just long recordings of the sounds of Loren's car interior as he drives from point A to point B.

I'll let Loren explain why...
_________________________
Tony Fabris

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#121806 - 18/10/2002 23:05 Re: Has my SIM been cloned? [Re: tfabris]
ricin
veteran

Registered: 19/06/2000
Posts: 1495
Loc: US: CA
My pocket has a tendency to call friends when I forget to lock the keypad on the phone.
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Donato
MkII/080000565
MkIIa/010101253
ricin.us

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#121807 - 18/10/2002 23:09 Re: Has my SIM been cloned? [Re: ricin]
tfabris
carpal tunnel

Registered: 20/12/1999
Posts: 31600
Loc: Seattle, WA
Yeah, funny thing is that I don't clearly remember when Loren or I would have programmed her number into his cell phone. We've done one ski trip together where I might have used his cell phone to call my wife (though I don't remember doing that), and there may have been an empeg meet in the Bay area where I was carrying her cell phone with me (I do that sometimes when I'm on trips) and I gave him her number so he could get a hold of me. I just don't remember it.
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Tony Fabris

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#121808 - 18/10/2002 23:19 Re: Has my SIM been cloned? [Re: tfabris]
ricin
veteran

Registered: 19/06/2000
Posts: 1495
Loc: US: CA
Never know. I've gotten phone calls from people I could swear I didn't give my number to, it's an unlisted number, and the 5 or so people who know it, know not to (and won't) give it out - So I guess it must have been me. Not that I didn't want to talk to them, I just didn't expect the call.
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Donato
MkII/080000565
MkIIa/010101253
ricin.us

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#121809 - 18/10/2002 23:54 Re: Has my SIM been cloned? [Re: tfabris]
drakino
carpal tunnel

Registered: 08/06/1999
Posts: 7868
My wife's cell phone voicemail continues to get long messages from Loren

I had similar problems with people who got new Nokia phones. Many of them would never lock their keypad, and all the Nokia phones they got had the keypad exposed at all times. And by default, they stored the first 7 or so numbers as quick dial numbers, where you just hold down the key to dial.

Lucially it has stopped, as many people have moved on to clam shell phones or similar arrangements where locking the keypad isn't needed. Though it was always entertaining to try and identify where the person was. Once my friends girlfriend did this with the phone in her purse at the grocery store. I got the call, and heard them talking about what soup to buy. So I hung up, called back, and offered my choice of soup when my friend answered. They were rather puzzled at first until I explained.

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#121810 - 19/10/2002 09:19 Re: Has my SIM been cloned? [Re: AndrewT]
andym
carpal tunnel

Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
A quick search of the 'net reveals an article written in 1998 said that in order to completely clone a SIM you need physical access to the original. So, unless you've recently misplaced your phone and then had it miraculously reappear, I'd say it's somebody who has trouble reading. Then again, if they've been renting porn videos, maybe their eyesight isn't that good anymore.

I don't know wether two identical phones could also exist on the same network, otherwise, how would the network know which phone to 'ring' when someone dials your number.

In the days of analogue cloning, people only used the ID's to make calls, there would be no point resolving the phone number as no'one would want to incriminate themselves by answering a knowingly cloned phone.
_________________________
Cheers,

Andy M

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#121811 - 19/10/2002 10:07 Re: Has my SIM been cloned? [Re: andym]
pca
old hand

Registered: 20/07/1999
Posts: 1102
Loc: UK
In the days of analogue cloning, people only used the ID's to make calls, there would be no point resolving the phone number as no'one would want to incriminate themselves by answering a knowingly cloned phone.

Well, back in the days of analogue, ie about 8 years ago, Hugo found his phone had been cloned. It was odd. As I recall, you could call his number from his phone and get an irate Glaswegian! The network seemed happy enough to have two identical phone IDs active at the same time.

pca
_________________________
Experience is what you get just after it would have helped...

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#121812 - 19/10/2002 10:31 Re: Has my SIM been cloned? [Re: pca]
andym
carpal tunnel

Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
What about ringing from another number? Did you always get the other bloke or was it pot luck?
_________________________
Cheers,

Andy M

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#121813 - 19/10/2002 11:07 Re: Has my SIM been cloned? [Re: AndrewT]
DWallach
carpal tunnel

Registered: 30/04/2000
Posts: 3810
Cloning a modern SIM card is relatively difficult, versus the old analog phones where it was trivial. Odds are, that's not your problem.

Instead, the most likely problem is the increasing density of assigned telephone numbers. My home phone differs from a bill collections agency in exactly one digit (in my phone number, it's a seven, in the collections agency, it's a one). Guess what? I regularly have messages on my machine screaming at me for forgiveness or whatnot about the money they owe. It's all quite entertaining, I suppose, but it does get old after a while. Back in the old days, they took a lot more care to have a larger Hamming distance between assigned phone numbers, but that just doesn't fly any more.

Another interesting data point: my old cel phone was in the 713 area code, same as my home phone. Both got a regular stream of wrong numbers. My new cel phone is in the 832 area code. I don't think I've gotten a wrong number there yet. I assume that the newer 832 area code is more sparsely assigned, and thus has fewer wrong numbers.

The moral of the story, assuming there is one, is that getting phone numbers in the ugly new area codes, while more annoying to remember, are better for avoiding wrong numbers.

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#121814 - 19/10/2002 12:47 Re: Has my SIM been cloned? [Re: DWallach]
JeffS
carpal tunnel

Registered: 14/01/2002
Posts: 2858
Loc: Atlanta, GA
"I assume that the newer 832 area code is more sparsely assigned, and thus has fewer wrong numbers."

It was my understanding that 832 numbers were for cell phones only, but I could be wrong about this. Though I know lots of people with 281 and 713 numbers, I only know one with an 832, and it's a cell.
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-Jeff
Rome did not create a great empire by having meetings; they did it by killing all those who opposed them.

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#121815 - 19/10/2002 15:20 Re: Has my SIM been cloned? [Re: DWallach]
g_attrill
old hand

Registered: 14/04/2002
Posts: 1172
Loc: Hants, UK
As mentioned it is possible but very difficult to clone a GSM SIM (so I have read) but they would both be deactivated as soon as they were used at the same time.

I think that either the number has been misprinted in the past or it was allocated to the seller at some time.

Our phone number at work was used by a local turbine impeller manufacturer until 1996ish and we get a few calls a month from people dialing the number printed on old literature.

We know the correct number by heart now and people seem impressed!

Gareth

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#121816 - 19/10/2002 15:58 Re: Has my SIM been cloned? [Re: g_attrill]
rob
carpal tunnel

Registered: 21/05/1999
Posts: 5335
Loc: Cambridge UK
Mike's direct line at empeg used to be a central heating company. We have hours of fun talking people through dismantling their gas central heating units.

Rob

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#121817 - 19/10/2002 16:58 Re: Has my SIM been cloned? [Re: g_attrill]
andym
carpal tunnel

Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
My old NTL number must have been recycled as I always used to get wrong numbers usually from old dears who wouldn't take no for an answer...
_________________________
Cheers,

Andy M

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#121818 - 20/10/2002 12:57 Re: Has my SIM been cloned? [Re: andym]
Roger
carpal tunnel

Registered: 18/01/2000
Posts: 5683
Loc: London, UK
When I lived in London, the phone number was one digit different from that of the local bank. We used to get some pretty strange messages left. I'm not entirely sure how -- the answerphone message was pretty unambiguous that you'd reached the house of Roger, Pete and Andy .
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-- roger

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#121819 - 20/10/2002 13:01 Re: Has my SIM been cloned? [Re: tfabris]
Roger
carpal tunnel

Registered: 18/01/2000
Posts: 5683
Loc: London, UK
Dunno how it works in the UK.

FYI: In the UK, cell phones (we call them 'mobiles' over here, though) aren't assigned to the normal area codes. Normal area codes begin with 01 or 02 (e.g. numbers in London are 020 xxxx yyyy, numbers in Cambridge are 01223 xxx yyy). Mobile phone numbers generally use an 07 code.
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-- roger

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#121820 - 21/10/2002 01:56 Re: Has my SIM been cloned? [Re: rob]
frog51
pooh-bah

Registered: 09/08/2000
Posts: 2091
Loc: Edinburgh, Scotland
In reply to:

We have hours of fun talking people through dismantling their gas central heating units.




Correctly? Or did you take the more amusing/cruel route?
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Rory
MkIIa, blue lit buttons, memory upgrade, 1Tb in Subaru Forester STi
MkII, 240Gb in Mark Lord dock
MkII, 80Gb SSD in dock

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#121821 - 21/10/2002 03:19 Re: Has my SIM been cloned? [Re: frog51]
rob
carpal tunnel

Registered: 21/05/1999
Posts: 5335
Loc: Cambridge UK
I wasn't entirely serious.

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#121822 - 21/10/2002 04:05 Re: Has my SIM been cloned? [Re: rob]
frog51
pooh-bah

Registered: 09/08/2000
Posts: 2091
Loc: Edinburgh, Scotland
Darn - would have been a good one Not that I in any way condone that sort of thing. (Unless it's recorded for posterity!)
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Rory
MkIIa, blue lit buttons, memory upgrade, 1Tb in Subaru Forester STi
MkII, 240Gb in Mark Lord dock
MkII, 80Gb SSD in dock

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#121823 - 21/10/2002 13:11 Re: Has my SIM been cloned? [Re: frog51]
lectric
pooh-bah

Registered: 20/01/2002
Posts: 2085
Loc: New Orleans, LA
In college a friend of mine's phone was 1 digit off of the local pizza delivery place. At first, we tried pointing out that they HAD in fact, dialed an incorrect number, 1 week later, called the phone company and tried to get a new number. They said no. After that we felt we had done all we could do and started taking orders. After about a month, the pizzaria called and volunteered to help us change our number (and buy it from us). 2 days later, we got a new phone number.

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#121824 - 21/10/2002 13:18 Re: Has my SIM been cloned? [Re: lectric]
tonyc
carpal tunnel

Registered: 27/06/1999
Posts: 7058
Loc: Pittsburgh, PA
Hmm you gotta use situations like that to your advantage..

"Large pie with pepperoni, that comes to $12.23 with tax. Your name?"
"Cathy"
"And the address?"
"123 Chastity Hall."
"Allright, Cathy, are you young, attractive, and single? We're having a half-off special running for young, attractive, single women."
_________________________
- Tony C
my empeg stuff

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#121825 - 21/10/2002 13:28 Re: Has my SIM been cloned? [Re: tonyc]
lectric
pooh-bah

Registered: 20/01/2002
Posts: 2085
Loc: New Orleans, LA
Shoulda just upcharged it and actually had the thing delivered to us, the re-deliver it and make a fiver. It's not like campus was so incredibly huge.

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#121826 - 21/10/2002 16:07 Re: Has my SIM been cloned? [Re: tonyc]
rob
carpal tunnel

Registered: 21/05/1999
Posts: 5335
Loc: Cambridge UK
OK so I finally have to take the bait.

Why do you guys called Pizza "pie"?? Pizza is so not pie!

Rob

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#121827 - 21/10/2002 16:09 Re: Has my SIM been cloned? [Re: rob]
tfabris
carpal tunnel

Registered: 20/12/1999
Posts: 31600
Loc: Seattle, WA
Pizza is so not pie!

Sure it is. It's just made of cheese and meat instead of fruit and sugar.

(And besides, that's kind of regional anyway. I don't hear it called pie very often around here unless it's from a New Yorker.)
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Tony Fabris

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#121828 - 21/10/2002 16:11 Re: Has my SIM been cloned? [Re: rob]
Ezekiel
pooh-bah

Registered: 25/08/2000
Posts: 2413
Loc: NH USA
Uuh, ever have a Chicago deep dish? It's pie.

-Zeke
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#121829 - 21/10/2002 16:15 Re: Has my SIM been cloned? [Re: Ezekiel]
rob
carpal tunnel

Registered: 21/05/1999
Posts: 5335
Loc: Cambridge UK
Pies have a lid. If there's no lid it's a tart.

Rob

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