I have read that, supposedly, "hacking" used to refer to exploring the tunnels underneath a college campus. https://en.wikipedia.org/wiki/Roof_and_tunnel_hacki

I have read that, supposedly, "hacking" used to refer to exploring the tunnels underneath a college campus. https://en.wikipedia.org/wiki/Roof_and_tunnel_hacking https://en.wikipedia.org/wiki/Roof_and_tunnel_hacking