Dear all, I think my iPhone has been infected by a virus in a coffee shop through Wifi connection. My phone was originally off on my desk, but the screen suddenly showed a meaningless message on the lock screen (please see the image I have attached). After pressing the only button on the screen, my phone is completely disabled. I think it is a virus. When I was in the coffee, my iPhone alternatively connected with a random wifi. I didn't pay attention until the lock screen showed the message in the picture. Have any one experienced something similar? Many thanks!