When I get a package from Mercado Libre here in Argentina they ask for my national ID number [1], take a photo of the number in the door and when it's expensive enough (USD$100?) they ask for a secret word that they send the previous day bay email. For USD$400,000 I'd expect them to do a DNA analysis :) .
[1] I'm not sure how they check the number, because they accept the ID number of anyone in the family and even the full time cleaner of the building. They type it and the app takes a second to show a green check. I guess it's a fuzzy list to prevent obvious scams.
