AI Shortlist / Security
email security Who ChatGPT, Perplexity, and Gemini name when B2B buyers ask about email security.
12 prompts · 36 answers · Data as of Oct 27, 2026, 12:02 AM ET · Methodology
IS MY COMPANY ON THE SHORTLIST?
SHARE OF VOICE
Who AI recommends All engines ChatGPT Perplexity Gemini
22/36 · 61%· score 64 2 Microsoft Defender
21/36 · 58%· score 60 17/36 · 47%· score 67 16/36 · 44%· score 62 15/36 · 42%· score 55 11/36 · 31%· score 54 7 Barracuda Email Protection
10/36 · 28%· score 31 9/36 · 25%· score 47 8/36 · 22%· score 42 10 Check Point Email Security
7/36 · 19%· score 30 5/36 · 14%· score 30 12 Cisco Secure Email
4/36 · 11%· score 12 13 Proofpoint Email Protection
4/36 · 11%· score 10 14 Proofpoint ZenGuide
4/36 · 11%· score 15 15 Secure Email Gateway
4/36 · 11%· score 13 Mentions out of 36 successful answers across all three engines.
BUYER PROMPTS
What we asked, ranked by buyer intent These are the questions buyers type when they are close to choosing a tool, not when they are just learning. We rank them by how close the wording is to a purchase: price and budget questions first, then switching and "alternatives to" questions, then head-to-head comparisons, then "best tool for my kind of team". Each prompt was asked once in ChatGPT, Perplexity and Gemini, with no login, chat history or personalization. Full methodology
#1 · Active switch or alternatives search Mimecast alternatives #2 · Active switch or alternatives search Proofpoint alternatives #3 · Segment-specific best-of shortlist best anti-phishing tool for MSPs #4 · Segment-specific best-of shortlist best email security for Google Workspace #5 · Segment-specific best-of shortlist best email security for mid-size businesses #6 · Segment-specific best-of shortlist best phishing protection for Microsoft 365 #7 · Category best-of shortlist best AI email security #8 · Category best-of shortlist best business email compromise protection #9 · Category best-of shortlist best defense against deepfake social engineering #10 · Category best-of shortlist best email security platform 2026 #11 · Category best-of shortlist best human risk management platform #12 · Category best-of shortlist best security awareness training with phishing simulation COMPARE
Head-to-head in this niche Brand A Select Abnormal Security Microsoft Defender Proofpoint Mimecast Ironscales Check Point Barracuda Email Protection KnowBe4 Hoxhunt Check Point Email Security Huntress Sublime Security Secure Email Gateway Cisco Secure Email Proofpoint ZenGuide Proofpoint Email Protection Mimecast Advanced Email Security Barracuda Guardz Coro Cybersecurity Living Security Proofpoint Core Email Protection Acronis Cyber Protect Cloud Mimecast Email Security Microsoft Attack Simulation Training CybSafe Proofpoint Essentials Incident response Brand B Select Abnormal Security Microsoft Defender Proofpoint Mimecast Ironscales Check Point Barracuda Email Protection KnowBe4 Hoxhunt Check Point Email Security Huntress Sublime Security Secure Email Gateway Cisco Secure Email Proofpoint ZenGuide Proofpoint Email Protection Mimecast Advanced Email Security Barracuda Guardz Coro Cybersecurity Living Security Proofpoint Core Email Protection Acronis Cyber Protect Cloud Mimecast Email Security Microsoft Attack Simulation Training CybSafe Proofpoint Essentials Incident response Pick two brands to see mentions per engine and shared prompts.
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METHODOLOGY
Engines: ChatGPT, Perplexity, Gemini. This niche: 12 prompts, 36 successful answers. Tested 2026-10-27. A mention is one successful answer that names the brand. Share of voice is mentions divided by total successful answers in the niche. Results are a point-in-time snapshot of model answers, not a traffic ranking.