Background

Cicada 3301 is a nickname given to an organization that on three occasions has posted a set of puzzles to recruit codebreakers from the public. The first internet puzzle started on January 4, 2012 on 4chan and ran for approximately one month. A second round began one year later on January 4, 2013, and a third round following the confirmation of a fresh clue posted on Twitter on January 4, 2014. The stated intent was to recruit “intelligent individuals” by presenting a series of puzzles which were to be solved. No new puzzles were published on January 4, 2015. However, a new clue was posted on Twitter on January 5, 2016. In April 2017 a verified PGP-signed message was found: Beware false paths. Always verify PGP signature from 7A35090F. That message explicitly denies the validity of any unsigned puzzle, as recently as April 2017.

The puzzles focused heavily on data security, cryptography, steganography, internet anonymity, and surveillance.

It has been called “the most elaborate and mysterious puzzle of the internet age” and is listed as one of the “top 5 eeriest, unsolved mysteries of the internet”, and much speculation exists as to its function. Many have speculated that the puzzles are a recruitment tool for the NSA, CIA, MI6, a “Masonic conspiracy” or a cyber mercenary group. Others have claimed Cicada 3301 is an alternate reality game. No company or individual has taken credit for it or attempted to monetize it, however.

Continue scrolling for more...

Document Archive

(Other than the NSA documents below, it should be noted that a “no records” response was given to my FOIA requests on Cicada 3301 sent to the FBI, NSA’s Intellipedia system, and the CIA.

Cicada 3301 Documents from the NSA [27 Pages, 10MB] (Note: the request date from the NSA referenced in the letter is incorrect.)

 

 

 

* Thanks to Wikipedia for background information on Cicada 3301.
Follow The Black Vault on Social Media:

This post was published on October 29, 2019 1:58 pm

John Greenewald

Recent Posts

FOIA Appeal Adds New Dog Bite Details from Biden White House, Confirms Video Evidence Withheld

Newly obtained Secret Service records continue to shed light on the numerous biting incidents involving…

September 26, 2025

DoD Redacts Nearly All Records Explaining AARO’s Use of Law Enforcement Exemption for UAP Files

The Department of Defense (DoD) has released a set of heavily redacted emails in response…

September 25, 2025

Pentagon Denies Existence of “Yankee Blue” Memo Reported by Wall Street Journal

A Freedom of Information Act (FOIA) response has raised new questions about a widely circulated…

September 16, 2025

DoD Says Aerospace Firms Went “On the Record” About UAP — Then Refuses to Acknowledge Records Exist

In March 2024, the Department of Defense (DoD) published publicly its Report on the Historical…

September 6, 2025

NASA Cites FOIA Exemption to Withhold James Webb Briefing Content Despite Public Hearing

In September 2024, a Freedom of Information Act (FOIA) request was filed with NASA seeking…

September 3, 2025

FBI Files: Historical Figures & Groups

Background Welcome to the FBI Files on Historical Figures & Groups archive at The Black…

August 31, 2025