sms with anti-theft

Hi, yesterday i’ve changed the sim card of my phone, and it start to send sms to my friends list it sends about 65 sms with the same information injust 2 minutes, that makes my account to run out, :-\ , i was wondering if there’s a way that only send one or two sms tho the friends list?? how can i change it??

Thanks

Please, do NOT double post…
http://forum.avast.com/index.php?topic=99068