# CDXE

Startup, Sweden.

> Cyber Defence Exercise Environment
>
> — in its own words, from kryptogram.se

- Website: https://kryptogram.se/cdxe/
- Listed since: 2026
- launched: 2026-07-26
- launch post: https://news.ycombinator.com/item?id=49058101
- hn score: 3
- Last verified: 2026-07-26


## Sources

- Hacker News, "Show HN" — https://news.ycombinator.com/item?id=49058101, read 2026-07-26

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startup.is · https://startup.is/registry/cdxe · open data: /api/v1, /llms.txt