If it's relevant, this is from an 8 month university coop position.
Today while I was searching my team's network drive for code, I found a directory labelled "staffing" and my interest got the best of me. Inside I found folders for just about every position they had staffed for in the last decade, and within the folders it contained resume and interview results for every applicant for every position. It mentioned things like university grades and transcripts of discussions with references. It also contained all the HR paperwork for the successful applicants (things that would disclose salaries, home addresses, home emails etc.).
Is this a common or ethical practice? It seems off to me but I'm new to this style of workplace, none of my previous positions involved shared network access or this much computer work.