1. A method for enabling a search of digital communications network traffic to identify information transmitted by, received by, or exchanged with a given human or non-human entity via the digital communications network, the method comprising: translating Pcap (packet capture) files or streams of IP network packets obtained from the network into a scalable form suitable for query by search engine functionality, thereby to enable scalable, text-based search of network information contained in the Pcap files, wherein the Pcap files or streams of IP network packets comprise any of IP session messages, transactions or protocol sequences, and providing scalable search engine functionality to enable a user to execute a text-based search on textual or human relationship-identifying information derived from the Pcap files or streams of IP network packets, thereby to identify information transmitted by, received by, or exchanged with the given human or non-human entity, wherein the scalable search engine functionality is capable of scaling to search massive quantities of Pcap file or IP network packet data.