Mark Klein

American whistleblower (1945–2025)
Person human Q3294135
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Mark Klein

Summary

Mark Klein is a human[1]. He was born in Brooklyn[2]. He was born on +1945-05-02T00:00:00Z[3]. He died in Oakland[4]. He died on +2025-03-00T00:00:00Z[5]. He worked as an engineer[6]. He ranks in the top 0.68% of human entities by monthly Wikipedia readership (525 views/month, #6,821 of 1,000,298).[7]

Key Facts

  • Mark Klein was born in Brooklyn[2].
  • Mark Klein died in Oakland[4].
  • Mark Klein was born on +1945-05-02T00:00:00Z[3].
  • Mark Klein died on +2025-03-00T00:00:00Z[5].
  • Mark Klein died on +2025-03-08T00:00:00Z[8].
  • Mark Klein held citizenship in United States[9].
  • Mark Klein's professions included engineer[6].
  • Mark Klein was employed by AT&T[10].
  • Mark Klein received the EFF Award[11].
  • Mark Klein's image is recorded as Mark Klein AT&T.jpg[12].
  • Mark Klein is recorded as male[13].
  • Mark Klein's instance of is recorded as human[14].
  • Mark Klein's VIAF cluster ID is recorded as 3121159477870827990005[15].
  • Mark Klein's GND ID is recorded as 1257610171[16].
  • The cause of death was pancreatic cancer[17].
  • Mark Klein's Freebase ID is recorded as /m/0d9qfs[18].
  • Mark Klein's family name is recorded as Klein[19].
  • Mark Klein's given name is recorded as Mark[20].
  • Mark Klein's manner of death is recorded as natural causes[21].
  • Mark Klein's languages spoken, written or signed is recorded as English[22].
  • Mark Klein's name in native language is recorded as {'lang': 'en', 'text': 'Mark Klein'}[23].
  • Mark Klein's different from is recorded as Mark Klein[24].
  • Mark Klein's different from is recorded as Mark Klein[25].
  • Mark Klein's writing language is recorded as English[26].

Body

Origins and Family

Mark Klein's place of birth was Brooklyn[2]. He was born on +1945-05-02T00:00:00Z[3].

Career and Affiliations

Mark Klein worked as an engineer[6]. Among his employers was AT&T[10].

Recognition

Mark Klein received the EFF Award[11].

Death and Burial

Recorded date of death include +2025-03-00T00:00:00Z[5] and +2025-03-08T00:00:00Z[8]. Mark Klein passed away in Oakland[4]. The cause of death was pancreatic cancer[17].

Why It Matters

Mark Klein ranks in the top 0.68% of human entities by monthly Wikipedia readership (525 views/month, #6,821 of 1,000,298).[7] He has Wikipedia articles in 6 language editions, a strong signal of global cultural recognition.[27]

FAQs

Where was Mark Klein born?

Born in Brooklyn[2], Mark Klein…

Where did Mark Klein die?

Mark Klein died in Oakland[4].

What did Mark Klein do for work?

Mark Klein worked as engineer[6].

What awards did Mark Klein receive?

Honors received include EFF Award[11].

References

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

Direct Wikidata claims

  1. [12] . wikidata.org.
  2. [2] . washingtonpost.com. Retrieved . washingtonpost.com. Provenance: wikidata.org.
  3. [4] . washingtonpost.com. Retrieved . washingtonpost.com. Provenance: wikidata.org.
  4. [13] . Virtual International Authority File. Retrieved . wikidata.org.
  5. [9] . wikidata.org.
  6. [14] . wikidata.org.
  7. [6] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . eff.org. Retrieved . eff.org. Provenance: wikidata.org.
  10. [15] . wikidata.org.
  11. [16] . wikidata.org.
  12. [17] . wikidata.org.
  13. [3] . washingtonpost.com. Retrieved . washingtonpost.com. Provenance: wikidata.org.
  14. [5] . eff.org. Retrieved . eff.org. Provenance: wikidata.org.
  15. [8] . washingtonpost.com. Retrieved . washingtonpost.com. Provenance: wikidata.org.
  16. [18] . Freebase Data Dumps. wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . wikidata.org.
  24. [26] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [7] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [27] . 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). Mark Klein. Retrieved April 11, 2026, from https://4ort.xyz/entity/mark-klein
MLA “Mark Klein.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Apr. 2026, https://4ort.xyz/entity/mark-klein.
BibTeX @misc{4ortxyz_mark-klein_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Mark Klein}}, year = {2026}, url = {https://4ort.xyz/entity/mark-klein}, note = {Accessed: 2026-04-11}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Mark Klein — https://4ort.xyz/entity/mark-klein (retrieved 2026-04-11)

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