"Porch pirates" stole $12 billion in goods in the last year alone. Here's what you can do.

Package thieves, often called "porch pirates," pose a growing threat to online shoppers.

Over the past year, criminals have stolen some $12 billion worth of goods delivered to people's homes, according to data from Security.org, which reviews security products. Security camera footage shows thieves running off with packages delivered to a home or even brazenly posing as a homeowner to accept an item directly from the delivery person. 

"He just took your package," a Fedex delivery person said in one clip of a thief making off with a package that had been deposited on a recipient's doorstep only seconds earlier.