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Cellular Phone Forum / Country Specific / Australian Group / January 2007

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SIM CARD ERROR - someone used my number

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matte - 17 Jan 2007 00:02 GMT
OK experts - figure this one out

Our phone returned a sim read error on our phone. Teltra support said it
should be working ok, but it did not so we went back to the retailer who had
recently sold us the phone and had a new sim card put in.

Time out of service - 2 days

In that time someone had a filed day, subscribed to Foxtel Mobile,
downloaded $550+ of WAP content, made calls and sent txts, plus a few other
costly goodies inlcuing subscribing to Jamster.

Telstra is reversing all charges for us so we are not out of pocket - which
is great.

But the question remains...how did this happen??

Was it, as Telstra suggests, an error when someone had a sim activated and a
keystroke erroe on the serial number gave them access to our account, or did
someone hack in??

The telstra tower/repeater location was 'sunset' not our usual towers that
show up.

So any telco gurus out there know the answer - or anyone else had this
happen to them?
Nick Adams - 17 Jan 2007 09:05 GMT
> Was it, as Telstra suggests, an error when someone had a sim activated and a
> keystroke erroe on the serial number gave them access to our account, or did
> someone hack in??

Sounds like an error with a sim card replacement. When a user upgrades
from 2G/CDMA to 3G/NextG they require a new sim card. The Telstra
Shop/dealer basically enters the old sim card number, the new card
number and the service number to transfer the account to the new sim.

I would have thought that MNC would have checked the old sim though??!!
Michael?
matte - 17 Jan 2007 23:09 GMT
>> Was it, as Telstra suggests, an error when someone had a sim activated
>> and a keystroke erroe on the serial number gave them access to our
[quoted text clipped - 7 lines]
> I would have thought that MNC would have checked the old sim though??!!
> Michael?

It must have been someone elses upgrade and a fat finger then!!!

But the person  MUST have known, cause they went flat out for several days
downloading as much as they could, subscribing to services etc.

Just shows there is a loophole in the system!
Nick Adams - 18 Jan 2007 01:19 GMT
>>> Was it, as Telstra suggests, an error when someone had a sim activated
>>> and a keystroke erroe on the serial number gave them access to our
[quoted text clipped - 11 lines]
> But the person  MUST have known, cause they went flat out for several days
> downloading as much as they could, subscribing to services etc.

Not really. Some NextG sign-ups allow $100 free content, data and
subscriptions for the first two months.

> Just shows there is a loophole in the system!

Yeah. I can't recall if there is any kind of verification on the old SIM
card number. Michael would know more....
matte - 18 Jan 2007 04:13 GMT
>>Not really. Some NextG sign-ups allow $100 free content, data and
>>subscriptions for the first two months.

yea but $600 in 2 days...
Michael - 19 Jan 2007 07:45 GMT
>> Was it, as Telstra suggests, an error when someone had a sim activated
>> and a keystroke erroe on the serial number gave them access to our
[quoted text clipped - 6 lines]
>
> I would have thought that MNC would have checked the old sim though??!!

MNC displays the old SIM number, with a checkbox for the dealer to tick =>
Checked SIM?

Changing a SIM would soon become second nature and you would probably tick
that box in your sleep
Spokes - 20 Jan 2007 10:11 GMT
> > Was it, as Telstra suggests, an error when someone had a sim activated and a
> > keystroke erroe on the serial number gave them access to our account, or did
[quoted text clipped - 7 lines]
> I would have thought that MNC would have checked the old sim though??!!
> Michael?

It's not unusal for dealers to call Retail Support and confirmt the
surrent sim number prior to an upgrade, especially if the handset has
been lost or stolen.
It's possibly human error as Michael suggests. a simple typo.
Emjaye - 21 Jan 2007 07:27 GMT
Nick said....

> Sounds like an error with a sim card replacement. When a user upgrades
> from 2G/CDMA to 3G/NextG they require a new sim card. The Telstra

My NextG Samsung A501 has a "3G" SIM card in it. If I took it out and
put it in my Wife's Nokia 6233 3G GSM phone, would it work? Or,
alternatively, if I put her SIM in the Samsung, what would it do?
Spokes - 21 Jan 2007 10:37 GMT
> Nick said....
>
[quoted text clipped - 4 lines]
> put it in my Wife's Nokia 6233 3G GSM phone, would it work? Or,
> alternatively, if I put her SIM in the Samsung, what would it do?

yes...try it.
Michael - 19 Jan 2007 07:39 GMT
> OK experts - figure this one out
>
[quoted text clipped - 12 lines]
>
> But the question remains...how did this happen??

Easy. Someone transposed a digit, and did a SIM replacement on your number,
instead of someone elses

> Was it, as Telstra suggests, an error when someone had a sim activated and
> a keystroke erroe on the serial number gave them access to our account, or
> did someone hack in??

Nope

> The telstra tower/repeater location was 'sunset' not our usual towers that
> show up.

Then that shows you it had nothing to do with you

> So any telco gurus out there know the answer - or anyone else had this
> happen to them?

Human error
matte - 24 Jan 2007 07:05 GMT
>> OK experts - figure this one out
>>
[quoted text clipped - 31 lines]
>
> Human error

I lean away from human error due to $550+ of charges in TWO days. What
normal human spends that much unless they know there is a mistake made or it
was deliberate?!
Spokes - 24 Jan 2007 11:51 GMT
> >> OK experts - figure this one out
>
[quoted text clipped - 33 lines]
> normal human spends that much unless they know there is a mistake made or it
> was deliberate?!-
interesting point. hopefully telstra people are looking into it as a
possible fraud case. you may never hear about it.
Spokes - 24 Jan 2007 11:47 GMT
> > OK experts - figure this one out
>
[quoted text clipped - 23 lines]
> > So any telco gurus out there know the answer - or anyone else had this
> > happen to them?Human error

some dealerships don't have access to all systems and have to call
support to get the current sim number.
 
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