How are camera systems typically wired?

Most professional security camera systems are wired through the attic. Technicians run cables (either coaxial for analog or Ethernet for digital/PoE cameras) through the attic space, allowing for discreet routing between rooms and to exterior mounting points. This keeps wiring hidden and protected from the elements, while also providing clean access to power and data connections. The attic route is ideal for single-story and many two-story homes, making installation neater and minimizing visible wires both indoors and outside.