How do i intercept a message being sent by a person ?

Question

what i mean is.......when person A is sending a message to person B then how can i see what person A is sending.....i use sony ericsson K320i.

Answer 1

If your on the same network, you can do that by using a packet sniffer called ethereal.

Answer 2

The only people that can do that is FBI, police or CIA.