What Does NSA Line Eater Mean?
The “NSA line eater” is a fictional creation of the USENET era. In the early days of the internet, newsgroup users collectively developed this urban legend that suggested the U.S. National Security Agency (NSA) was actively monitoring all posts, and that some type of surveillance tool was “eating up” random lines of various messages.
Techopedia Explains NSA Line Eater
The idea of the NSA line eater emerged because USENET users would occasionally see some lines of posts vanish seemingly at random. They might see text from one post or another cut off in parts. The theory was that NSA monitoring and surveillance software was clipping these random pieces out of USENET postings.