I work in the audiovisual integration and technology industry and have very little knowledge regarding network and IT security. My boss has asked that I research the potential security risk that our integrated systems face and what we can do to mitigate those risks. Primarily our concern is whether someone can access the video and audio conferencing systems and listen in, record, or otherwise compromise what should be a confidential conversation. The systems we install are Biamp DSPs with SIP and POTs lines and Cisco, LifeSize, Polycom, etc VTC systems. In most instances these devices live on a LAN that allows control from a system processor and video switch and occasionally this is place on the client's network to allow monitoring and remote support from our technicians. I know that VTC and ATC devices have built in encryption but what are the odds of someone being able to access the system and listen in to conversations that are not teleconferenced. I would really appreciate input regarding what kind of risks our client's might face from hacking, corporate espionage, or even government monitoring. Thank you.