The robot David in Prometheus (2012) has “Weyland Enterprises” fingerprints.
I’ve rewatched Prometheus many times and only caught this now.
The black liquid, also known as the "black goo" or "mutagen," is a powerful, mutagenic pathogen created by the Engineers as a biological weapon. It's a complex substance composed of millions of microorganisms that can drastically alter the DNA of living beings upon contact, leading to various mutations and transformations
by igby1