The internet has, in its storied history, been compared to many things: a river; a superhighway; and, perhaps most famously, a series of tubes. But as it turns out, the most apt comparison of all just might be an iceberg.
Like the mighty floes that break off from glaciers, only 10% of the network we call “the internet” is visible to the general public. Hidden below the virtual waterline lies a tangled and secretive network known as the Deep Web. Unindexed by search engines, and accessible only with special browsers such as The Onion Router (Tor), the Deep Web is made up of peer-to-peer connections, which allow users to share files directly (and secretly).