Some can even proactively ward off potential trespassers even before they enter your property. Their features have improved a lot, too! It’s common to see security cameras these days that can distinguish between people and other moving objects, detect when a package is dropped off or picked up, and even recognize faces. From those clunky commercial security cameras from the early 2000s, they’ve become smaller, smarter, and able to make out incredible detail. Security cameras have been evolving at a rapid pace over the last two decades.