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The Ringer
Internet Mysteries: Cicada 3301
46 minutes Posted Nov 2, 2021 at 7:01 am.
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In 2012, a secret organization began recruiting codebreakers by posting a series of ciphers online. Whoever could solve them the fastest was in. But the syndicate wasn’t as friendly as they first seemed. Who was really behind it all? And when, if ever, will their last cipher be solved?

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