About
What this project is, what it is not, and where its parts come from.
What this is
Cyber Digital Bushido uses the eight virtues of Bushido as a working taxonomy for security practice. It has three layers: a manifesto that makes the argument, a set of control mappings to NIST CSF 2.0 and ISO 27001:2022 that give it credibility, and a self-assessment that turns it into a mirror.
The audience is security practitioners. The site is free, has no gated content, and asks for nothing. If any part of it overclaims, that is a bug worth reporting.
On the eight virtues
The classical enumeration of Bushido is seven: Gi, Yū, Jin, Rei, Makoto, Meiyo, and Chūgi. Self-control — 自制 jisei, more commonly 克己 kokki — is a twentieth-century addition, largely downstream of Nitobe Inazō's 1900 book Bushido: The Soul of Japan, which framed samurai ethics for a Western readership.
This site keeps eight because self-control maps cleanly to change and configuration management, which is real security work. It says so on the page rather than hiding the seam.
On Bushido generally
Bushido was codified late, romanticised heavily in the nineteenth and twentieth centuries, and put to nationalist use in the 1930s and 1940s. This site treats it as an ethical framework worth reading, not as unbroken historical fact. The lens is useful; the history is not being laundered.
On the mappings
The mappings to NIST CSF 2.0 and ISO 27001:2022 are interpretive — one defensible reading, not an official crosswalk. Every mapping surface says so and links to the primary standard. Standard text is not reproduced here; only identifiers and short titles are cited. Where a mapping is a stretch, the page admits it.
Credits and licences
Kanji stroke-order data is from KanjiVG (kanjivg.tagaini.net), copyright © 2009–2011 Ulrich Apel and contributors, licensed under Creative Commons Attribution-Share Alike 3.0. The stroke data used on this site, and the module derived from it, are redistributed under the same licence.
Typefaces are IBM Plex Mono, IBM Plex Sans, and IBM Plex Sans JP, licensed under the SIL Open Font License 1.1. They are self-hosted; the site makes no third-party font request.
NIST Cybersecurity Framework 2.0 and ISO/IEC 27001:2022 are the property of their respective publishers. This project is independent of, and not endorsed by, either.
Contact
Corrections, disagreements, mapping challenges, and privacy or ledger-removal requests all go to privacy@cyberbushido.net.