A seeming contrast with information security is the high desire for information sharing, with the right audience (your fellow staff members).
Sharing with hackers is a bad thing. Sharing with other staff members is a good thing. With a central server, and a central email server (Exchange server), sharing is easy. Shared file folders (your S: drive) are a much better way to share documents than passing them back and forth through email. It’s also good not to clog up email with documents going back and forth. It’s a good “best practice” idea to think about and standardize how you name folders and documents to help in collaborating with others