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OpenBSD

security-focused Unix-like operating system
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OpenBSD

Summary

OpenBSD is a security-focused operating system[1]. OpenBSD draws 2,302 Wikipedia views per month (security_focused_operating_system category, ranking #1 of 4).[2]

Key Facts

  • OpenBSD is the creator of Theo de Raadt[3].
  • OpenBSD's instance of is recorded as security-focused operating system[4].
  • OpenBSD's instance of is recorded as free operating system[5].
  • OpenBSD's instance of is recorded as BSD[6].
  • Berkeley Software Distribution is named after OpenBSD[7].
  • OpenBSD's based on is recorded as Q34225[8].
  • OpenBSD's based on is recorded as Berkeley Software Distribution[9].
  • OpenBSD's developer is recorded as Theo de Raadt[10].
  • OpenBSD's developer is recorded as OpenBSD Project[11].
  • OpenBSD's part of the series is recorded as Berkeley Software Distribution[12].
  • OpenBSD's copyright license is recorded as BSD licenses[13].
  • OpenBSD's copyright license is recorded as ISC license[14].
  • OpenBSD's copyright license is recorded as 3-clause BSD License[15].
  • OpenBSD's software version identifier is recorded as 2.1[16].
  • OpenBSD's software version identifier is recorded as 2.2[17].
  • OpenBSD's software version identifier is recorded as 2.0[18].
  • OpenBSD's software version identifier is recorded as 2.3[19].
  • OpenBSD's software version identifier is recorded as 2.4[20].
  • OpenBSD's software version identifier is recorded as 2.5[21].
  • OpenBSD's software version identifier is recorded as 2.6[22].
  • OpenBSD's software version identifier is recorded as 5.6[23].
  • OpenBSD's software version identifier is recorded as 5.7[24].
  • OpenBSD's software version identifier is recorded as 5.8[25].
  • OpenBSD's software version identifier is recorded as 2.7[26].
  • OpenBSD's software version identifier is recorded as 2.8[27].

Product Details

The following facts are restated verbatim from public-domain and CC0 open-data sources — every line is independently verifiable against the named source's catalog.

MusicBrainz — CC0 open music encyclopedia

  • Began / founded: 1995[28]

  • MusicBrainz ID: d11f557d-f21b-4001-ac9d-953326bbb8aa[29]

Body

Authorship and Creation

OpenBSD is the creator of Theo de Raadt[3].

Publication

OpenBSD's part of the series is recorded as Berkeley Software Distribution[12].

Subject and Themes

OpenBSD's part of the series is recorded as Berkeley Software Distribution[12].

Why It Matters

OpenBSD draws 2,302 Wikipedia views per month (security_focused_operating_system category, ranking #1 of 4).[2] OpenBSD has Wikipedia articles in 28 language editions, a strong signal of global cultural recognition.[30]

OpenBSD has been cited as an influence by macOS[31], a proprietary operating system[32], founded in 2001[33]; Darwin[34], an Unix-like operating system[35]; and XNU[36], a kernel[37].

FAQs

Who did OpenBSD influence?

OpenBSD has been cited as an influence by macOS[31], Darwin[34], and XNU[36].

Related Entities

Anarch Berkeley packet filter Blender BSD cheat Crystal Darwin DEC Alpha free operating system FuguIta GNU Gatekeeper Go Hare Jujutsu KRename LibertyBSD Luna Imaging macOS maim Matthieu Herrb MongoDB Nushell OrbTk PostgreSQL PowerPC Prism Launcher ROOT security-focused operating system signify SPARC64

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [5] ↑ . wikidata.org.
  3. [6] ↑ . wikidata.org.
  4. [7] ↑ . wikidata.org.
  5. [8] ↑ . bxr.su. Retrieved . bxr.su. Provenance: wikidata.org.
  6. [9] ↑ . bxr.su. Retrieved . bxr.su. Provenance: wikidata.org.
  7. [3] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . openbsd.su. openbsd.su. Provenance: wikidata.org.
  12. [14] ↑ . github.com. github.com. Provenance: wikidata.org.
  13. [15] ↑ . cvsweb.openbsd.org. cvsweb.openbsd.org. Provenance: wikidata.org.
  14. [16] ↑ . openbsd.org. openbsd.org. Provenance: wikidata.org.
  15. [17] ↑ . openbsd.org. openbsd.org. Provenance: wikidata.org.
  16. [18] ↑ . monkey.org. monkey.org. Provenance: wikidata.org.
  17. [19] ↑ . openbsd.org. Retrieved . openbsd.org. Provenance: wikidata.org.
  18. [20] ↑ . openbsd.org. openbsd.org. Provenance: wikidata.org.
  19. [21] ↑ . openbsd.org. openbsd.org. Provenance: wikidata.org.
  20. [22] ↑ . openbsd.org. openbsd.org. Provenance: wikidata.org.
  21. [23] ↑ . thread.gmane.org. thread.gmane.org. Provenance: wikidata.org.
  22. [24] ↑ . openbsd.org. openbsd.org. Provenance: wikidata.org.
  23. [25] ↑ . openbsd.org. Retrieved . openbsd.org. Provenance: wikidata.org.
  24. [26] ↑ . openbsd.org. openbsd.org. Provenance: wikidata.org.
  25. [27] ↑ . openbsd.org. openbsd.org. Provenance: wikidata.org.

Product details (FDA / USDA / NHTSA public-domain catalog data)

  1. [28] ↑ . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.
  2. [29] ↑ . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.

Inverse relationships (entities pointing at this one)

  1. [31] ↑ . wikidata.org. → on this site
  2. [34] ↑ . wikidata.org. → on this site
  3. [36] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [32] ↑ . Wikidata. wikidata.org. → on this site
  2. [33] ↑ . Wikidata. wikidata.org. → on this site
  3. [35] ↑ . Wikidata. wikidata.org. → on this site
  4. [37] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [30] ↑ . Wikidata sitelinks. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). OpenBSD. Retrieved May 3, 2026, from https://4ort.xyz/entity/openbsd
MLA “OpenBSD.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/openbsd.
BibTeX @misc{4ortxyz_openbsd_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{OpenBSD}}, year = {2026}, url = {https://4ort.xyz/entity/openbsd}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): OpenBSD — https://4ort.xyz/entity/openbsd (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/openbsd · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 6w ago · Fiwswe · 2026-05-21 view diff on Wikidata ↗
    Official website → https://www.openbsd.org
    Software version identifier → 2.1, 2.2, 2.0 +58
    Gnd id → 4791366-6
    Developer → —
    + 74 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P348]]: 7.9"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.