[gus_massa]

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.

[gambiting]

Here in the UK Amazon gives you a code that you have to give to the driver for more expensive parcels specifically for this reason. Again doesn't seem like an outrageous thing to implement for a 400k delivery.

[joezydeco]

I've ordered expensive things from Amazon to my office in the US and they did the whole code ritual... the driver just dumped it at the door and ran. It's all for show.

[gambiting]

Over here I was definitely told by Amazon drivers that unless they type in the code it won't mark the parcel as delivered. The same with GPS trace - unless they are within ~100m of the destination it won't let them actually mark it as delivered. Maybe your driver didn't care about having missing parcels at the end of the day, but the system is strict about it(again, over here, maybe Amazon US is different).

[joezydeco]

It must be, because I got the "delivered" message and found it sitting outside our door on the floor.