inetloc files serve as shortcuts to Internet resources like an RSS feed or a telnet location and may include a server address and possibly login credentials for SSH or telnet sessions.
Microsoft Exchange Autodiscover protocol found leaking hundreds of thousands of credentials.Nonetheless macOS sees such files as Internet locations.
Apple's own developer website doesn't recognize the term. inetloc file extension appears to date back to around 2004 but isn't well documented.
