Alan Turing
Foundations
Developed a mathematical account of computation and contributed to wartime cryptanalysis. This is foundational history, not a claim of membership in later hacker communities.
Reviewed: 2026-10-16

Alan Turing — authored → On Computable Numbers
Date: 1936
Archive of the original paper.
https://turingarchive.kings.cam.ac.uk/computable-numbers

Alan Turing — joined codebreaking site → Bletchley Park
Date: 1939-09
Successor agency’s institutional history.
https://www.gchq.gov.uk/person/alan-turing

Alan Turing — worked on secure voice during wartime visit → Bell Laboratories
Date: 1942–1943
Wartime visit, NOT employment. Cryptanalysis was collaborative.
https://bletchleypark.org.uk/wp-content/uploads/record_attachments/1800.pdf