@karlauerbach @suzannealdrich @paul_ipv6 @briankrebs So much was known 60 years ago. https://www.cs.columbia.edu/~smb/talks/vassar-privacy.pdf summarizes some of it; some of my legal writing has citations to even more sources. The first privacy law in the modern world was in Hesse, in 1970; the phrase "data shadow" was coined no later than 1973 by Kerstin Anér, a member of the Swedish parliament. We should not be where we are today! (Credit reports, though, go way back, and originally consisted of gossip collected from servants about their employers.)