Earlier quoted context omitted.
In one generation in the US we went as a whole society from most private p2p conversations not being logged and monitored and recorded by the government, to most private p2p conversations not only being logged and monitored and recorded, but available to the state at any time without probable cause or a warrant (FISA Amendments Act). iMessage, WhatsApp, Gmail, Facebook Messenger, Instagram: all of these are stored on…
> most private p2p conversations not being logged and monitored FWIW, I think telephone company billing records have been doing this for nearly a century. Sure, it wasn't the official government policy, but the data was recorded. ECHELON has been around quite a long time as well, and that was indeed government monitoring of large amounts of international communications. I'm not trying to normalize it, just adding som…
https://www.eff.org/cases/hemisphere
There may well be earlier extant data. It was probably tabulated either on punch-card or magnetic tape, and certainly was used for billing purposes. Prior to the 1980s, large-scale data preservation was quite expensive.
If anyone has information of earlier comprehensive call history data surviving to the present, I'd appreciate being illuminated.
More citations of Hemisphere and call history data in an earlier comment: https://news.ycombinator.com/item?id=22208434