If you're replacing your iPhone or Android phone, we've got the perfect idea for your old model: Turn it into a free home security camera with the right app.

Network cameras are the successor to the analog closed-circuit TV (CCTV) systems that have been widely used for decades, but instead of a dedicated network, they use the local IP network ...

Security cameras used to be analog devices feeding back into a room full of tiny screens and commercial grade VCRs. As technology moved forward, IP cameras began to proliferate. Early models ...