I can't test this out personally as my phone does not have a sim card in it as tha'ts not how my provider works, but yeah since my phone is with me at all times i'm not at all worried about this. Read this though and just disable siri to work from the lock screen. Note. This works under ios7 as well. http://lifehacker.com/preview/another-ios-exploit-allows-untrusted-users-to-access-si-1643351736?utm_campaign=socialflow_lifehacker_twitter&utm_source=lifehacker_twitter&utm_medium=socialflow
