“In another age, the paper trail may have taken the form of notes stuffed into a box in a forgotten archive. But this being the 21st century, some of the breadcrumbs were submitted to an online wiki. According to the Times, intelligence officers in various agencies rushed to complete analyses of intelligence about Russian hacking and file the results, at low classification levels, in a secret Wikipedia-like site for intelligence analysts. There, the information would be widely accessible among the intelligence community.
That site, called Intellipedia, has been around for more than a decade. It’s made up of three different wikis, at different classification levels: one wiki for sensitive but unclassified information, another for secret information, and a third for top secret information. Each wiki can only be accessed by employees in the U.S. intelligence community’s 17 agencies who have the appropriate clearance level.”
Source: The Government’s Secret Wiki for Intelligence – The Atlantic