The answer, of course, is that you still think it's a phone. That means that you don't expect that someone can pnz0r you through your voice network:
High-tech telephones common on many workplace desks in the U.S. can be hacked and turned into eavesdropping devices, researchers at Columbia University have discovered.The guys who discovered this have a very funny presentation where they describe it. You don't have to be a computer security nerd to follow along, at least for the first 10 minutes.
The hack, demonstrated for NBC News, allows the researchers to turn on a telephone's microphone and listen in on conversations from anywhere around the globe. The only requirement, they say, is an Internet connection.
Doctoral candidate Ang Cui and Columbia Professor Sal Stolfo, who discovered the flaw while working on a grant from the U.S. Defense Department, say they can remotely order a hacked telephone to do anything they want and use to hide their tracks. For example, they said they could turn on a webcam on a phone equipped with one or instruct the phone's LED light to stay dark when the phone's microphone has been turned on, so an eavesdropping subject wouldn’t be alerted that their phone has been hacked.
This is not to throw rocks at Cisco (full disclosure: I used to work at Cisco in their security business unit, and my technology was used pretty extensively on Cisco voice products); I would say that they didn't exactly cover themselves in glory here, saying that this was less of a worry than the researchers, but Cisco will fix this.
And it will happen again, on Cisco kit and on pretty much everyone else's as everything that we're used to gets computerized (hello, self-driving cars!). When you put a computer in something, you turn it into a computer. That's life. The faster everyone catches on to that the safer we'll all be.