Google’s index keeps track of last-modified metadata. When a page has a visible text string like "Updated 24 hours ago" or a query parameter ?upd=24 , that string gets indexed. Since modern sites rarely use SHTML or such update indicators, the results that do appear are almost certainly old or abandoned systems.

: Anyone with a browser can view live feeds of private homes, offices, parking lots, or industrial sites. Camera Hijacking

If you own an IP camera or manage a network, follow these steps to prevent being indexed by such dorks: Enable Authentication

http://203.0.113.45:8080/view/index.shtml?24upd Content: Live feed of a warehouse loading dock, no authentication. Risk Level: Medium-High. Potential physical security breach.