Yeah this was for a pretty secure job where you had to be a citizen in order to be eligible, so they would been a bit oversensitive with the passport, but really every business should see the physical passport because I could send them anything.

It's easy enough to fake a picture of a passport but much harder to fake the actual passport. If someone's coming into the business on their first day just have them bring the passport with them on that day. The only reason I had to mail my passport was because I was going to work in a remote office.