Help - can SIMs be cloned?

espresso

veryunsure wrote: »

did google it, nothing came up. Seems now that she does recognise the number and it is an ex friends. She swears not to have contacted him. So I think there is probably no fraud or cloning. Just a teenager.

:rotfl:

Get some gorm!

veryunsure

what does 'get some gorm' mean?

Ypaymore

veryunsure wrote: »

Account now has a lid on it so can't be overspent now.

Yes it can the call limit is only for calls,you can still run up massive text bill.

Quentin

And it will go over if used for roaming abroad.

Take it off her and give her a payg till she can afford to pay her own bills.

patwa_2

Seeing as you now have a probable solution to the issue, in that your daughter made the calls, I just thought I might outline some of the other ways in which charges can occur, these without the user's consent. I'm quite interested in cellular technology, so this probably isn't all garbage.

1. A user could potentially download an application that makes use of the phone's calling abilities. New versions of the Symbian operating system are supposed to make this harder without user authorisation, but older phones may be succeptable. I'm not commenting on other operating systems as they aren't my main focus.

2. Bluetooth hijacking. It is indeed possible for a person to hijack the phone via bluetooth and initiate calls or send texts without the user's knowledge. Of course, 24/7 use is probably not viable as the user would notice when trying to make calls themselves, or the link would be broken if the phone was switched off/ran out of battery power. This is more likely as bluetooth use does drain the battery more than other features. Also, the phone would have to be in constant range (10-30ft) from the hijacker to work via bluetooth.

3. The old fashioned one: Whereas reverse charging for calls is known, it can also be that texts received incur a charge. This is most common for subscription services, or other services such as chat or gaming services. Many of these services do not immediately make it apparent that there is a charge per text to RECEIVE the texts, not just for SENDING text commands to the service.

Hope this helps.

H.

g33za

Be aware that o2's billing date is usually a few days behind so its always easy to over the limit and still have a high bill.