It really does go back to the 1960s phone phreak subculture as well as technophile aspects of the hippie subculture. Look for old issues of the Whole Earth Catalog.
A lot of those people from the 1990s grew up and created the tech startup scene, which sometimes reminds me of hacker/warez groups in some ways.
If you're into this sort of thing, you'll like Exploding the Phone[1] which details the history of phone phreaking and Counterculture to Cyberculture [2] which is a critical look at how the Whole Earth Catalog circle interacted with the tech scene.
A lot of those people from the 1990s grew up and created the tech startup scene, which sometimes reminds me of hacker/warez groups in some ways.