With IP CCTV cameras now so cheap they are often purchased and installed by homeowners who don't really know what they're doing.
An IP Camera is one which connects to a network, often by WiFi, and lets you view the video remotely, either with a phone app or on a special webpage. That webpage is often your IP Address, which is the numerical representation of how you are connected to the internet, and usually gives some idea of your location.
The most common mistake people make is not changing the default username/password that comes with the camera. Default combinations such as admin/password, admin/admin or admin/[blank] will let a random person get access to a disturbing number of cameras installed by people on and sometimes within their homes. The user can then watch these people going about their day, tell whether they are home or not, or home alone, all via the cameras the resident themselves installed.
Several hundred of these cameras in Australia have been collected together and indexed by location at the following website. If you or someone you know installed their own CCTV cameras, perhaps you want to scroll through and see if you recognise any of these.
If you don't know what you're doing, we suggest you get someone else to install CCTV at your home or business. Note that in many states you must be licenced to install CCTV for someone else. We are licenced in Victoria as Security System Installers which allows us to do this lawfully.
Throwing up a few cheap chinese made cameras might seem simple enough, but can have unpleasant side effects.