A858 - The Most Mysterious Subreddit

A858 is a mysterious subreddit made in 2011 posting strange hexadecimal sequences multiple times per day. The mystery gets stranger after the user behind it starts giving small pieces of information about the project through heavily encrypted code. The a858 mystery has been around for almost 10 years now, and the true meaning is still shrouded. The cryptography displayed is seemingly very hard to solve, but I hope that some attention can be brought back to this subreddit and mystery so that it may become solved.
A858 - The Most Mysterious Subreddit

Thank you so much for all of the recent support on the channel.

Let me know what internet phenomenon or mystery you guys would like me to cover next.

Check Out the solving A858 subreddit here

Subscribe here:

All music from Epidemic Sound.

0:00 Intro
0:47 The Story
6:20 Theories

[tesiaw]

me generating strong passwords and then dumping them in random subreddits so I don’t forget them

[fleeb]

imagine after decrypting them for a long time you’d get: “the cashier just gave me a cheeseburger instead of a big mac”

[misingpx]

Imagine if after you decrypted all the messages, it creates a youtube link that leads to a Rickroll

[Lalwa]

"We've been trying to reach you about your car's extended warranty"

[markdobbins]

it's probably just a company testing how secure their encryption is

[Rfthbf]

mysteries like this are usually some MIT or Harvard college student making a thesis paper

[XShrimpGodx]

I think the sub's purpose was to test a new form of encryption, the posts that people were able to decrypt were most likely to maintain interest on the project.

[woopslap]

Can’t believe you’re so small, this is really well made.

[zavodszkiabel]

'Mom, can we have Cicada 3301?'
'We have Cicada 3301 at home'
Cicada 3301 at home:

[jamesmartin]

I know am not suppose to post this here But Crypto currency is gradually moving towards something big and the price surge over the past few months is just the beginning of greater things to come. you got any advice for someone that is fresh to crypto. Don't know where to start..

[MiniMight]

Is it just me or is YouTube pushing more quality channels with under 100k subs recently. Really nice to see

[snoozley]

From disrupt, glad I've found this channel.

[katiekawaii]

I'm so mad that I watched this video. Now this is going to occupy my mind without any closure *forever.*

[XiaoMingXing]

A failed ARG that the owner simply no longer wanted to continue sounds like a pretty solid explanation.

[TheGreatCalsby]

Our elite team: MIT students with vast knowledge and expertise, Code-breaking hackers who can hijack any mainframe, and... regular redditors, I guess

[Dabs_L]

let's be real here this channel is going to skyrock in a few months
its content is super balanced and interesting
looking forward to more videos ^

[rublaj]

I just know that all these people trying to solve the mystery are now on the FBI watchlist.

[psychxx]

So that’s what the FBI’s recruitment process is like huh

[biboujkr]

girls: we give the boys obvious signs but they just don't understand
their signs:

[vanderkarl]

Amazing... imagine working on a sequence for days on end and finally cracking it and it's just a variation on "Thanks for the gold, kind stranger!"