Louis, a professional hacker, had used specialized tools or search engines to encrypt all his browsing activity and navigate anonymously to obtain sensitive/hidden information about official governmen

Dark web footprinting involves leveraging anonymizing tools such as the Tor browser and specialized dark web search engines to access .onion sites and hidden government or federal databases not reachable via the surface web. The encrypted, multi-hop onion routing prevents network-layer attribution, making it impossible for defenders to trace the attacker's real IP address. This technique is specifically used when the attacker seeks sensitive data that exists outside publicly indexed resources.

VoIP footprinting focuses on enumerating Voice over IP infrastructure such as SIP endpoints, PBX systems, and VoIP gateways - not anonymous browsing of hidden databases.

VPN footprinting involves identifying VPN concentrators, supported protocols, and authentication mechanisms of a target network, not accessing dark web resources anonymously.

Website footprinting involves collecting publicly visible information from a target's surface web presence such as page metadata, server headers, and directory structures.