It's relatively common to have access to private security cameras. Some are even google indexed.

The software included relies on the users protect the web interface. Obviously, this is the vulnerability. Especially with things like default passwords.

Here's an article about it: http://www.networkworld.com/article/2844283/microsoft-subnet...

A lot of these cameras are controllable and have speakers.

People now do live video streams of pranking people through this means.

Pictures: http://imgur.com/a/0WImd