Perplexity · AI Security & Privacy · Machine Relations Index

Which sources does Perplexity cite most among AI Security & Privacy sources?

Name: Which sources does Perplexity cite most among AI Security & Privacy sources?
Creator: Jaxon Parrott
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Perplexity, AI Security & Privacy, Machine Relations Index

As of October 25, 2026, among sources with a published AI Security & Privacy segment, Reddit is the most-cited source in Perplexity answers across the whole window, cited in 20.89% of 7,268 observed Perplexity runs.

A rate is the source's share of Perplexity's observed runs across the whole window, not a rate inside AI Security & Privacy. The public release does not record a separate rate for one engine inside one category. Sources are listed only when they have a published segment here, which means that segment cleared the evidence floor.

Markdown Agent API Public JSON Release manifest

Ranking

Sources ranked by citation rate

Rank	Source	Source role	Citation rate	Cited runs	Engine's observed runs	Confidence
#1 of 1,253	Reddit	Community and social platform	20.89%	1,518	7,268	A
#2 of 1,253	LinkedIn	Community and social platform	11.23%	816	7,268	A
#3 of 1,253	YouTube	Search or media platform	9.14%	664	7,268	A
#4 of 1,253	Forbes	Editorial publication	7.97%	579	7,268	A
#5 of 1,253	G2	Market and company database	5.10%	371	7,268	A
#6 of 1,253	NIH	Academic and government source	4.50%	327	7,268	A
#7 of 1,253	Arxiv.org	Academic and government source	3.95%	287	7,268	A
#8 of 1,253	Amazon.com	Other observed source	3.74%	272	7,268	A
#8 of 1,253	Yahoo News	Editorial publication	3.74%	272	7,268	A
#10 of 1,253	Guideflow.com	Other observed source	3.11%	226	7,268	A
#11 of 1,253	Microsoft.com	Vendor-owned source	3.08%	224	7,268	A
#12 of 1,253	PCMag	Editorial publication	3.04%	221	7,268	B
#13 of 1,253	Alibaba.com	Other observed source	2.92%	212	7,268	B
#14 of 1,253	Worldmetrics.org	Analyst and consulting research	2.56%	186	7,268	B
#15 of 1,253	Zapier.com	Vendor-owned source	2.46%	179	7,268	B
#16 of 1,253	Medium	Community and social platform	2.42%	176	7,268	A
#17 of 1,253	Ibm.com	Vendor-owned source	2.31%	168	7,268	A
#18 of 1,253	Paloaltonetworks.com	Vendor-owned source	2.27%	165	7,268	A
#19 of 1,253	Dev.to	Community and social platform	2.26%	164	7,268	A
#20 of 1,253	Github.com	Community and social platform	2.23%	162	7,268	A
#20 of 1,253	TechRadar	Editorial publication	2.23%	162	7,268	A
#22 of 1,253	People Managing People	Editorial publication	2.13%	155	7,268	B
#23 of 1,253	CNBC	Editorial publication	2.08%	151	7,268	B
#23 of 1,253	Gitnux.org	Analyst and consulting research	2.08%	151	7,268	B
#25 of 1,253	CNET	Editorial publication	2.04%	148	7,268	B
#26 of 1,253	TechTarget	Editorial publication	1.84%	134	7,268	A
#27 of 1,253	Capterra.com	Market and company database	1.82%	132	7,268	B
#28 of 1,253	Sentinelone.com	Vendor-owned source	1.79%	130	7,268	B
#29 of 1,253	Facebook.com	Community and social platform	1.75%	127	7,268	B
#30 of 1,253	Gartner.com	Analyst and consulting research	1.71%	124	7,268	A
#31 of 1,253	Erpresearch.com	Market and company database	1.68%	122	7,268	B
#32 of 1,253	Zipdo.co	Analyst and consulting research	1.64%	119	7,268	B
#33 of 1,253	Substack.com	Community and social platform	1.62%	118	7,268	A
#34 of 1,253	Apple News (Syndication from Grit Daily)	Other observed source	1.58%	115	7,268	B
#34 of 1,253	Business Insider	Editorial publication	1.58%	115	7,268	B
#36 of 1,253	Wifitalents.com	Analyst and consulting research	1.42%	103	7,268	B
#37 of 1,253	Expert Insights	Editorial publication	1.38%	100	7,268	B
#38 of 1,253	Databricks.com	Vendor-owned source	1.29%	94	7,268	B
#38 of 1,253	Harvard.edu	Academic and government source	1.29%	94	7,268	B
#38 of 1,253	Salesforce.com	Vendor-owned source	1.29%	94	7,268	B
#41 of 1,253	Huntress.com	Vendor-owned source	1.18%	86	7,268	B
#42 of 1,253	Wikipedia	Academic and government source	1.17%	85	7,268	A
#42 of 1,253	Y Combinator	Community and social platform	1.17%	85	7,268	B
#44 of 1,253	Nhimg.org	Other observed source	1.10%	80	7,268	B
#44 of 1,253	WIRED	Editorial publication	1.10%	80	7,268	C
#46 of 1,253	Indiatimes	Editorial publication	1.02%	74	7,268	C
#47 of 1,253	Deloitte.com	Analyst and consulting research	1.00%	73	7,268	B
#48 of 1,253	Softwareadvice.com	Other observed source	0.99%	72	7,268	B
#49 of 1,253	Nvidia.com	Vendor-owned source	0.98%	71	7,268	B
#50 of 1,253	Atlan.com	Vendor-owned source	0.96%	70	7,268	B
#51 of 1,253	Sap.com	Other observed source	0.94%	68	7,268	B
#52 of 1,253	Deel.com	Vendor-owned source	0.89%	65	7,268	B
#53 of 1,253	AIMultiple	Editorial publication	0.87%	63	7,268	B
#54 of 1,253	Wiz.io	Vendor-owned source	0.85%	62	7,268	B
#55 of 1,253	Crowdstrike.com	Vendor-owned source	0.84%	61	7,268	B
#55 of 1,253	Gmicloud.ai	Other observed source	0.84%	61	7,268	B
#57 of 1,253	Oracle.com	Vendor-owned source	0.83%	60	7,268	B
#57 of 1,253	Sciencedirect.com	Academic and government source	0.83%	60	7,268	B
#59 of 1,253	Openai.com	Vendor-owned source	0.81%	59	7,268	B
#60 of 1,253	Vectra.ai	Vendor-owned source	0.80%	58	7,268	B
#61 of 1,253	F6s.com	Other observed source	0.78%	57	7,268	C
#61 of 1,253	Security.org	Other observed source	0.78%	57	7,268	B
#63 of 1,253	Runpod.io	Other observed source	0.77%	56	7,268	B
#63 of 1,253	Spheron.network	Other observed source	0.77%	56	7,268	B
#63 of 1,253	Tom's Guide	Editorial publication	0.77%	56	7,268	B
#66 of 1,253	Ieee.org	Academic and government source	0.76%	55	7,268	B
#66 of 1,253	Layer3labs.io	Other observed source	0.76%	55	7,268	C
#68 of 1,253	SourceForge	Market and company database	0.74%	54	7,268	C
#69 of 1,253	Futureagi.com	Other observed source	0.73%	53	7,268	C
#69 of 1,253	Scribd.com	Other observed source	0.73%	53	7,268	C
#69 of 1,253	Truefoundry.com	Vendor-owned source	0.73%	53	7,268	B
#72 of 1,253	Cdp.com	Vendor-owned source	0.70%	51	7,268	B
#72 of 1,253	Cyber Security News	Editorial publication	0.70%	51	7,268	C
#74 of 1,253	Northflank.com	Vendor-owned source	0.69%	50	7,268	C
#75 of 1,253	Cybernews	Editorial publication	0.66%	48	7,268	C
#75 of 1,253	Github.io	Other observed source	0.66%	48	7,268	B
#77 of 1,253	Fortinet.com	Vendor-owned source	0.63%	46	7,268	C
#77 of 1,253	Splunk.com	Vendor-owned source	0.63%	46	7,268	C
#79 of 1,253	Digitalapplied.com	Vendor-owned source	0.62%	45	7,268	B
#80 of 1,253	Cisco.com	Other observed source	0.59%	43	7,268	B
#80 of 1,253	Huggingface.co	Other observed source	0.59%	43	7,268	C
#82 of 1,253	Stackexchange.com	Community and social platform	0.58%	42	7,268	C
#82 of 1,253	Tech Insider	Editorial publication	0.58%	42	7,268	B
#82 of 1,253	Ustechautomations.com	Other observed source	0.58%	42	7,268	C
#85 of 1,253	Kiplinger	Editorial publication	0.56%	41	7,268	B
#85 of 1,253	Mit.edu	Academic and government source	0.56%	41	7,268	C
#87 of 1,253	Tech Times	Editorial publication	0.55%	40	7,268	C
#88 of 1,253	Digitalocean.com	Other observed source	0.54%	39	7,268	C
#88 of 1,253	Getmaxim.ai	Other observed source	0.54%	39	7,268	B
#88 of 1,253	Mdpi.com	Other observed source	0.54%	39	7,268	B
#88 of 1,253	Mordorintelligence.com	Market and company database	0.54%	39	7,268	B
#88 of 1,253	Underdefense.com	Other observed source	0.54%	39	7,268	C
#88 of 1,253	Upguard.com	Vendor-owned source	0.54%	39	7,268	C
#94 of 1,253	Acronis.com	Other observed source	0.52%	38	7,268	C
#94 of 1,253	Adaptivesecurity.com	Other observed source	0.52%	38	7,268	C
#94 of 1,253	Amplitude.com	Other observed source	0.52%	38	7,268	C
#94 of 1,253	Devopsschool.com	Other observed source	0.52%	38	7,268	C
#94 of 1,253	Ovaledge.com	Other observed source	0.52%	38	7,268	B
#94 of 1,253	Owasp.org	Academic and government source	0.52%	38	7,268	C
#100 of 1,253	Zenml.io	Other observed source	0.51%	37	7,268	C

Showing the first 100 of 1,253 ranked sources.

Category leaderboard, pooled across engines: AI Security & Privacy

Method

What each engine's figures measure

Release mri_score_v2.1+2026-10-25+9c34b2dccc04; methodology mri_score_v2.1; generated 2026-10-25; window 2026-05-10 to 2026-10-25; artifact 9f1a507f84e8.

The release roster names the model sonar for Perplexity.

Perplexity's sample is 7,268 observed runs across 162 dates. The evidence floor is 10 observed runs and 7 distinct dates.

ChatGPT runs. They go through OpenAI's API with web search switched on, using the model each release names in its engine roster: gpt-4.1-mini-2025-04-14 in current releases, while earlier runs in the window were answered by gpt-4o-mini-search-preview-2025-03-11. That is the retrieval layer apps and research agents built on OpenAI's API use. The signed-in ChatGPT app answers with its own models and search pipeline and cites differently: a preprint submitted on 2026-10-11 and not yet peer reviewed found that Google Search and OpenAI's API on comparable models together recovered about half of the hostnames ChatGPT Web cited (48.7 and 50.3 percent on two model settings) and 26 to 28 percent of its exact URLs (arXiv 2610.15382v1). Claude, Gemini and Perplexity runs are likewise API runs with web search, on the models the roster names.

Method note, 2026-09-25. From that date, Google AI Mode and Google AI Overviews runs come through a different collection path than earlier runs, with no overlapping days, and answers collected on the two paths differ in how many distinct domains each cites. Per-answer figures for those two engines are read within one side of 2026-09-25, not as a trend across it.

Degraded coverage: 5 of 6 answer engines are currently returning citation-bearing answers. gemini quiet (5 of 20 collected calls produced an observation, 25%). Coverage across the window is uneven: gemini returned citation-bearing answers on 140 of 162 observed days (2,197 of 6,962 returned runs produced a citation); google_ai_mode returned citation-bearing answers on 119 of 162 observed days (1,613 of 2,086 returned runs produced a citation); google_ai_overviews returned citation-bearing answers on 102 of 162 observed days (963 of 1,446 returned runs produced a citation). Engines below 90% of the window are named here; per-engine day and run counts for all 6 are in engine_roster.

Cite this leaderboard

How to cite Perplexity · AI Security & Privacy

Machine Relations Index (MRI) by Jaxon Parrott, Machine Relations Research — machinerelations.ai. As of October 25, 2026, among sources with a published AI Security & Privacy segment, Reddit is the most-cited source in Perplexity answers across the whole window, cited in 20.89% of 7,268 observed Perplexity runs. Release mri_score_v2.1+2026-10-25+9c34b2dccc04. https://machinerelations.ai/index/engines/perplexity/ai-security-privacy. CC BY 4.0.

APA

Parrott, J. (2026). Which sources does Perplexity cite most among AI Security & Privacy sources? (Version mri_score_v2.1+2026-10-25+9c34b2dccc04) [Data set]. Machine Relations Research. https://machinerelations.ai/index/engines/perplexity/ai-security-privacy

BibTeX

@misc{parrott2026mriperplexityaisecurityprivacy,
  author = {Parrott, Jaxon},
  title = {Which sources does Perplexity cite most among AI Security \& Privacy sources?},
  year = {2026},
  version = {mri\_score\_v2.1+2026-10-25+9c34b2dccc04},
  publisher = {Machine Relations Research},
  url = {https://machinerelations.ai/index/engines/perplexity/ai-security-privacy},
  license = {CC-BY-4.0},
  note = {Machine Relations Index (MRI) by Jaxon Parrott, Machine Relations Research — machinerelations.ai}
}

CITATION.cff

Which sources does Perplexity cite most among AI Security & Privacy sources?

Sources ranked by citation rate

What each engine's figures measure

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