In the highly competitive trade that I work in there have been a number of competing parties in the same work group. The level of competition has involved lots of passive aggressive behaviors, gossip, rumor, innuendo, backstabbing, etc., but worst of all there has been a culture of eavesdropping that has evidenced itself in many forms.

My question is, although I know it is possible for anyone who can get there hands on your phone for a few minutes to install a hidden program on it that allows them to use it as a listening device to eavesdrop on your conversations, is there a way that I or my phone store (Verizon Wireless) or another party can detect such a program, and for that matter, if so, is it further possible to look into phone records to identify the culprit?