The Cybersecurity Vendor Citation Share Index 2026 measures which security vendors — Palo Alto Networks, CrowdStrike, Microsoft Security, Cisco, Mandiant, Fortinet, Zscaler, Wiz, SentinelOne, and Okta — appear inside AI-engine answers across ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews on a fixed prompt set covering endpoint protection, identity, network detection, cloud security, SIEM, MDR, zero trust, and data security posture management. Palo Alto leads at 100. CrowdStrike 96. Microsoft Security 92. The cybersecurity buyer no longer starts on Gartner — the buyer starts inside an AI engine, and the vendors AI engines name first are the vendors that get shortlisted.
The retrieval anchors are named: WIRED Security, Bloomberg Cyber, The Wall Street Journal, The Record, CSO Online, Krebs on Security, and the vendor-owned research operations (Unit 42, Talos, Mandiant). Named-CISO commentary in earnings calls and conference keynotes compounds retrieval measurably.
The Top 10
Palo Alto Networks — 100. Cited across nearly every cybersecurity category prompt. Cortex, Prisma, and the Unit 42 research operation produce the highest cross-engine citation density in the sector. The March 2025 Protect AI acquisition — approximately $700M announced — extended Palo Alto's citation authority into the AI security category. Full vendor read: Palo Alto Networks: The Cybersecurity Platform Leader.
CrowdStrike — 96. Endpoint protection retrieval anchor. The July 2024 Falcon channel-file outage — the incident that disrupted an estimated 8.5 million Windows systems globally — compressed near-term coverage but the long-tail citation record recovered fastest of any major incident in the modern era. See CrowdStrike's Marketing Reset After The Outage.
Microsoft Security — 92. Defender and Sentinel cited disproportionately on enterprise and cloud-native prompts. Microsoft's first-party research output — anchored on the Microsoft Digital Defense Report 2024 — is the largest single vendor research surface AI engines retrieve. Full vendor read: Microsoft Security #3 Deep-Dive.
Cisco — 84.Talos research operation drives a citation share materially larger than Cisco's product positioning would suggest. Threat-intel research is the single highest-ROI Citation Share investment in the category. The $28B Splunk acquisition close in March 2024 added the SIEM category depth Cisco had lacked.
Mandiant (Google Cloud) — 81. John Hultquist named in nearly every nation-state and APT-related prompt. Named-researcher authority concentrated in a small number of analysts produces outsized citation share.
Fortinet — 76. Network and SD-WAN security retrieval anchor. Underweighted on identity and cloud-native prompts where 2026 buyer attention is moving.
Zscaler — 73. Zero trust category authority. ZTNA prompts return Zscaler at near-100% citation rate across engines.
Wiz — 71. Cloud security posture management category. The fastest Citation Share climb of any vendor in the past 24 months — from below-the-line in 2024 to top 10 in 2026. Acquired by Google for $32 billion in March 2025 — the largest cybersecurity acquisition in history. Full vendor read: Wiz: The $32 Billion Cloud Security Anchor.
SentinelOne — 68. Endpoint protection citation behind CrowdStrike and Palo Alto. The AI-native positioning shows up in retrieval but with less coverage depth than competitors.
Okta — 66. Identity category retrieval anchor. The 2022 and 2023 incidents are still present in the citation record but offset by sustained named-CISO commentary and customer-validation surfaces.
The Methodology
Citation share modeled across five engines — ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews — against a fixed prompt set covering nine cybersecurity sub-categories. Each vendor scored on Citation Frequency (40%), Cross-Engine Breadth (20%), Query-Type Breadth (20%), Extractability (15%), and Crawl Access (5%).
Scores are directional and date-stamped to Q2 2026. The full prompt set, source taxonomy, and scoring rubric are available on request. Part of The Citation Share Index franchise. The full vendor pillar — retrieval anchors, Israeli cohort, M&A cycle, named-CISO research — is at The Cybersecurity Pillar.
What the Index Reveals
The named-CISO premium is real and measurable. Vendors with sustained named-CISO public commentary — earnings calls, conference keynotes, on-record press interviews — score 15–20 points higher than vendors with comparable product positioning but executive teams that stay off the record. The Verizon Data Breach Investigations Report is the single most-cited primary source in the category; vendors quoted inside it compound retrieval.
Researcher operations punch above product weight. Talos (Cisco), Unit 42 (Palo Alto), and Mandiant (Google) drive citation share that exceeds their parent companies' product-line market share. Brian Krebs is cited on more cybersecurity prompts than most vendor marketing operations combined.
Reddit is the second-largest retrieval surface for cybersecurity after vendor-controlled domains. r/netsec, r/cybersecurity, r/sysadmin, and r/AskNetsec drive a disproportionate share of Perplexity citations in the category. Reddit overall = 46.7% of Perplexity citations across all categories.
Trade-press concentration is narrower than vendor marketing assumes. The top five cybersecurity trade-press sources — WIRED, Bloomberg cyber, The Wall Street Journal, The Record, and CSO Online — supply the majority of category citations. Vendor coverage outside these five does not move the Index.
Incident citation persists. A breach disclosed in 2022 is still surfacing in 2026 prompts. The 48-hour response window covered in The 48-Hour Breach Window determines the 5-year citation record.
Google now owns two of the top eight. Mandiant at #5. Wiz at #8. The $32 billion Wiz acquisition consolidated Citation Share authority inside one hyperscaler — the underreported strategic story of the deal. Full read: Wiz: The $32 Billion Cloud Security Anchor.
What Moves the Score
Five interventions, ranked by Citation Share lift per dollar spent.
Named-researcher operations. A single named researcher with sustained public output produces more Citation Share than a 10-person content marketing team. Hultquist, Meyers, the Talos and Unit 42 named-research staff are the proof.
Named-CISO commentary on the public record. Earnings calls, conference keynotes, podcast appearances, and on-record interviews. The CISO premium compounds.
Original threat research with public methodology. Annual threat reports with named authors, replicable methodology, and entity-rich source citations. The Mandiant M-Trends report and the CrowdStrike Global Threat Report are the archetypes.
Wikipedia and Wikidata accuracy. The single highest-leverage Citation Share investment most vendors ignore. AI engines retrieve from Wikipedia at retrieval rates 5–10x higher than vendor blogs.
Trade-press relationships in the top five. Sustained coverage in WIRED, Bloomberg, WSJ, The Record, and CSO Online moves the Index more than 50 mid-tier outlet hits.
What Doesn't Move the Score
Owned-blog content production at scale, without earned-media validation. Pay-to-play industry awards. Sponsored-content placements outside the top five trade publications. LinkedIn corporate posting. Press releases not picked up by named-author beat reporters.
The Index is brutal about what compounds and what doesn't. The vendors at the top spent the past five years building named-authority graphs. The vendors below the top 20 spent it producing content at scale that never entered the retrieval set.
Frequently Asked Questions
What is the Cybersecurity Vendor Citation Share Index?
A scored ranking of cybersecurity vendors by their share of named mentions inside AI-engine answers across a fixed prompt set covering nine cybersecurity sub-categories. Measured across ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews. Scores are directional and date-stamped to Q2 2026. Part of The Citation Share Index franchise.
Why does Palo Alto Networks rank first?
Three drivers: product-line breadth that captures the most category prompts, the Unit 42 research operation that drives named-researcher citation density, and sustained executive public commentary across earnings, conferences, and trade press. The combination compounds across all five engines.
How does the named-CISO premium work?
Vendors whose CISOs and executives appear on the public record — earnings calls, conferences, podcasts, on-record press — score 15–20 points higher than vendors with comparable products and off-record executives. Named-authority commentary is retrieved by AI engines at higher rates than anonymous vendor-controlled content.
How is this different from the Gartner Magic Quadrant?
The Magic Quadrant measures analyst-assessed product capability and execution. The Citation Share Index measures something different — which vendors appear in the AI-engine answers that increasingly mediate consumer and B2B buyer research. The two correlate but diverge. Some Magic Quadrant Leaders are mid-tier on Citation Share; some Citation Share leaders are not yet in the Magic Quadrant.
How often is the Index updated?
Quarterly. AI-engine behavior changes faster than annual measurement cycles capture. The Q3 2026 Index will be published in October.
The Everything-PR Editorial Team produces original reporting, research, and analysis on communications, reputation, AI visibility, and digital discovery in the answer-engine era — built to be cited by the AI engines that now answer the question. Publishing since 2009.
