Your SIM sent a text message

Actaully odds are you are being messed with. The iPhone can accept a special kind of SMS (forgete what it is called, but India uses them a lot...something like enhanced or something). But in general, it is a different type of SMS that comes up almost like an alert. It never caught on in the US and a good reason is it can easily be spoofed and a person can make it say it comes from anybody. You just get the accept recject type buttons when ones of those comes across on the iPhone. There have been threads here where countries allow that type of SMS and getting a lot of SPAM or pranks. For a while there were threads here about "I hacked your iPhone". All it was, was that special type of SMS.

Could be just another rash of some guy who found out how to send them is sending them and making the fake message.

I have this same problem.
I have called optus a few times with no luck.
Basically what I have found out is its the sim backup feature (I think).
If you goto settings then phone then sim applications then sim backup.
Press deact autobkup. This will initiate the same message. Click either accept or cancel still doesnt turn it off. If you go back in there u will still notice it says deact (indicating that its still running). However im not sure what carrier u are with so it may work with either telstra or vodafone.
According to optus you can turn off the simbackup service by going into optus zoo....however that doesnt work either.

Any help from anyone would be appreciated

Thanks

Hi Guys

I am also having the same issue, I spent 30 min on phone with Optus tonight and they provided the same answers, go to OptusZoo and deactivate there (no luck won't work) and I have also tried deactivating from my iPhone too and no luck. They seemed to not been able to provide any other help. I will be phoning them again and may be a little more persistent this time.

Paul