From using existing wiring to repurposing old hardware or smart devices, keeping your home secure might not cost as much as you think.

Home and business security systems are supposed to keep Americans safe. Yet very often our cameras, routers, drones, smart locks, and more are compromised, opening the door to surveillance and ...

We may earn a commission from links on this page. Credit: René Ramos/Lifehacker/OsakaWayne Studios, Jackyenjoyphotography/Moment, luismmolina/iStock via Getty Images ...

Shopping for a security system or upgrade means choosing between many different sensors and devices. It's easy to fall into the "more is better" trap, especially if there's sale or special deal ...