More from this creator
Other episodes by Kitty Cat.
More like this
If you liked this, try these.
Transcript
The full episode, in writing.
You wake up, check your favorite website, and there it is: an anonymous black-and-white image with a simple message — “Hello. We are looking for highly intelligent individuals. To find them, we have devised a test.” That’s all. Except the message is signed: Cicada 3301. And, just like that, you’re hooked into what some have called the most elaborate and mysterious puzzle of the internet age.
This is the story of Cicada 3301 — the recruitment puzzle that turned the internet upside down, sent codebreakers scrambling across continents, and, to this day, hasn’t revealed who’s really pulling the strings.
The first Cicada 3301 puzzle appeared on January 4, 2012. It was posted to the /b/ and /x/ boards of 4chan, and it ran for almost a month before anyone managed to solve the first series of clues. The puzzles didn’t just stay online. Pretty soon, solvers were decoding cryptic images, then racing to real-world locations in cities like Paris, Moscow, and Dallas, hunting for physical posters printed with the cicada symbol and QR codes.
Between 2012 and 2014, three separate waves of puzzles hit the internet: January 4, 2012, January 4, 2013, and January 4, 2014. Every year, the puzzles kicked off on almost the exact same date, and every time, the internet’s smartest people dropped everything to chase the newest clues. The puzzles themselves mixed cryptography, steganography, references to philosophy, runes, and even unpublished books and original music. A book called Liber Primus, written in futhorc runes, contains at least 73 pages, but only 17 of those have ever been decrypted.
Some clues required booting up custom Linux CDs. Others referenced everything from William Gibson’s poem “Agrippa,” to the paintings of William Blake, ancient cuneiform, and the writings of Carl Jung and Søren Kierkegaard. Solvers uncovered nods to prime numbers, the Atbash and Vigenère ciphers, GnuPG, the Tor network, and even the concept of “antifragile” systems from Nassim Taleb. Physical clues were found taped to lamp posts and phone booths in at least 14 cities, including Tokyo, Seattle, Warsaw, and Granada.
But here’s where it gets really weird. Every piece of communication from Cicada 3301 was signed using the same OpenPGP private key, so solvers could be sure a clue was genuine. The puzzles were so difficult and multilayered that, according to Marcus Wanner, who solved the 2013 puzzle, only a handful of people ever reached the final round.
What happened to those who “won”? According to Wanner, solvers who finished were asked about their views on information freedom, online privacy, and their opinions about censorship. After that, the successful candidates were reportedly invited to a private forum, where they were told to work on a project furthering the ideals of the group. No one knows how many people made it to this stage, or if any of those projects ever saw the light of day.
Another person known by the alias Nox Populi documented her experience as a 2013 winner on her YouTube channel, describing the step-by-step solving process. She later became a community facilitator for ongoing Cicada discussions, keeping the mystery alive long after the original puzzles vanished.
The true purpose behind Cicada 3301 is a matter of intense debate. The group’s stated goal was to recruit “highly intelligent individuals,” but the ultimate aim is still unknown. Theories abound, ranging from a secret society dedicated to promoting cryptography, privacy, and internet freedom, to wild suggestions that Cicada was a recruitment tool for agencies like the NSA, CIA, MI6, or Mossad.
Others speculated Cicada 3301 was a masonic-style conspiracy, or even the front for a new cult or religion. The book Liber Primus has been accused of containing hidden initiatory doctrine, and conspiracy theorist Timothy Dailey claimed the puzzles might be luring participants into an occult network inspired by figures like Helena Blavatsky and Aleister Crowley. However, none of these theories have ever been proven.
Not everyone was a fan. In 2012, police in the Los Andes Province of Chile accused Cicada 3301 of being a hacker group involved in illegal activity, but Cicada responded with a digitally signed message flatly denying any crimes or links to hacking. In July 2015, an unrelated group using the “3301” name hacked Planned Parenthood’s database, but Cicada 3301 quickly issued a signed statement disavowing any connection, and the hackers themselves later confirmed they had no ties to Cicada.
Cicada’s influence reached beyond its own puzzles. In 2014, the United States Navy launched a cryptographic recruitment challenge inspired by Cicada 3301, calling it Project Architeuthis. The NSA followed up in May 2014 by posting a series of weekly encryption challenges on Twitter, again borrowing elements from the Cicada playbook. The phenomenon even inspired a 2014 episode of Person of Interest titled “Nautilus,” where the writers swapped Cicada’s insect logo for a nautilus shell but kept the mysterious global puzzle.
In 2021, the puzzle inspired a comedy-thriller film, Dark Web: Cicada 3301, directed by Alan Ritchson and starring Jack Kesy, Conor Leslie, and Ron Funches. The movie followed a hacker named Connor, who stumbles into the Cicada recruitment game and winds up dodging the NSA and a dangerous international conspiracy. The plot is pure fiction, but the premise is rooted in the real online frenzy.
Cicada 3301’s last verified OpenPGP-signed message was posted in April 2017, declaring that any unsigned puzzles weren’t authentic. Since then, the group has been silent, leaving the third major puzzle unsolved and dozens of cryptic pages in Liber Primus untranslated. No one has ever stepped forward as the voice behind Cicada 3301. No document has surfaced revealing what happened to the original recruits, or if the group’s secret projects ever reached completion.
In an era where the internet has a short memory, the Cicada 3301 mystery has endured more than a decade. The group’s puzzles have been listed among the “top 5 eeriest, unsolved mysteries of the Internet” by The Washington Post, and they’ve become a touchstone for codebreakers, conspiracy theorists, and puzzle lovers worldwide.
And here’s that last twist. In the very first Cicada message, the group told the world they were looking for those who could “find the light.” Years later, in the pages of Liber Primus, one encrypted line remains: “You have done well to come this far. Patience is a virtue.” As of today, over 80% of that book’s ciphers still haven’t been cracked. The final answers—and the identity of Cicada 3301—are still out there, waiting.