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Home
About
About the ACA
Membership
Become A Member
History
Constitution
Bylaws
Officers
FAQ
Members
Log In
Resources
The Cryptogram
: Sample Issue
Downloads
Solve A Cipher
Cipher Types
ACA Word Lists
Contact Us
Join Us
Facebook
The American Cryptogram Association
The American Cryptogram Association (ACA) is a non-profit organization dedicated to promoting the hobby and art of cryptanalysis -- that is, learning to break ciphers.
News
2024 ACA Cipher Contest Winners:
COMPUTER SOLVING DIVISION
1. DANEEL
2. XAMAN EK
3. SUSSI
PAPER/PENCIL DIVISION
1. DARING FLAIR
2. LATIN DUDE
3. DONALD DUCK
NOVICE DIVISION
1. BLUESTORMINATOR
2. CEREDWYN
3. WIRMZ