A big thank you to everyone who participated in #crackthecode last week! We had so much fun putting it together and probably even more fun watching the responses come in. You are a talented bunch.

As you may have noticed, our #crackthecode messages all came from encryption and computer science greats and they all have to do with one very important topic – innovation.

Innovation fuels us. It’s what keeps us passionate about our work. But more importantly, innovation is essential when it comes to cybersecurity.

Cyber experts have to continually outpace increasingly sophisticated attacks to keep private information and data safe. We at AT&T believe that continually researching new security technologies and approaches is one key way to out-smart attackers.

Our team is constantly thinking about innovation and these quotes are a great inspiration to us. We hope they are to you, too.

Below, you’ll find the correct answers to the encrypted tweets as well as a list of #crackthecode winners.

Thanks again to everyone who tuned in! Be sure to follow @attsecurity and AT&T Business on LinkedIn for more.


code cracking


Decoded Messages

Day 1 code                                                         

See original tweet here.

“We can only see a short distance ahead, but we can see plenty there that needs to be done.” – Alan Turing

Encrypted using the Caesar Cipher with an offset of 21


Day 2 code

See original tweet here.

“The only way of discovering the limits of the possible is to venture a little way past them into the impossible.” – Arthur C. Clarke

Encrypted using columnar transposition, column order is still 5 4 3 2 1.


Day 3 code

See original tweet here, plus a hint for the most challenging encrypted message out of the three.

“I’ve always been more interested in the future than in the past.” – RADM Grace Hopper

Encrypted with an Autokey Vigenere cipher, alphabet key “grace”, passphrase “hopper”


Winners Announced

We’re excited to announce our #crackthecode winners – Kevin H. rel="nofollow" href; Joe A.; David L.; Kasper L. Awesome job decoding all three encrypted tweets.

A special congratulations goes to our grand prize winner Matt W., who was the quickest to decode all three encrypted messages. In addition to a 3D printed prize, he’ll also be featured on IEEE’s Computing Now.


Gus de los Reyes Executive Director of Technology Security AT&T About Gus