More megapixels won't save you if the shot's wrong or the footage is gone. A practical guide to camera coverage, storage and retention, network load, and the cybersecurity risk cameras quietly introduce.

Access control is more than a card reader on a door. Credentials, controllers, the OSDP-vs-Wiegand wiring question, cloud vs on-prem, and the fail-safe decisions that keep you code-compliant — explained.