Doppel agentic social engineering defense (Email Security, Phishing Triage and agentic takedowns) vs Horizon3.ai NodeZero (autonomous pentesting)
Doppel agentic social engineering defense (Email Security, Phishing Triage and agentic takedowns) (Doppel (Doppel Inc.)) and Horizon3.ai NodeZero (autonomous pentesting) (Horizon3.ai) are both listed in the Security category of Agent Index. They share no framework tags in our dataset.
| Field |  Doppel agentic social engineering defense (Email Security, Phishing Triage and agentic takedowns) |  Horizon3.ai NodeZero (autonomous pentesting) |
|---|---|---|
| Vendor | Doppel (Doppel Inc.) | Horizon3.ai |
| HQ | United States · North America | United States · North America |
| Primary category | Security | Security |
| Also listed in | Security | Security |
| Summary | Social engineering defense platform where AI agents triage employee-reported phishing, remove malicious mail automatically, tune email detection policies and trace phishing back to its sending infrastructure and links to execute takedowns, alongside brand-impersonation takedowns across web, social, ads and app stores. | Autonomous pentesting platform that runs unlimited self-directed internal, external, cloud, Kubernetes and AD pentests, plans attack paths, guides remediation and re-tests to verify fixes. |
| Framework tags (Agent Index) | — | — |
| Frameworks (vendor-claimed) | — | FedRAMP |
| Capabilities / tasks | email security, phishing triage, threat intelligence, threat detection, remediation | pen test management, attack surface, exposure management, vulnerability management |
| Pricing (as published) | Not published | Not published |
| Pricing model | quote | quote |
| Primary source | https://www.doppel.com/product/email-security | https://horizon3.ai/nodezero/ |
| Last checked | 2026-10-18 | 2026-10-18 |
| Official site | https://www.doppel.com/product/email-security | https://horizon3.ai/nodezero/ |
Side-by-side data is generated from the open dataset. “Vendor-claimed” frameworks are as marketed by each vendor and not verified by Agent Index; framework tags indicate relevance, not certification. Request current quotes from each vendor before buying. This page does not rank or score vendors. Sponsored comparisons, if any, will be labelled.
Also in this use case
Other verified listings that share a task tag or use-case group with Doppel agentic social engineering defense (Email Security, Phishing Triage and agentic takedowns) or Horizon3.ai NodeZero (autonomous pentesting). Open a pair page or the use-case table — this is not a ranking.
- AIpentix (agentic continuous security testing and agentic red teaming, by Swipergy) — German continuous security-testing platform with an AI agent that signs in to the customer's application on its own, chooses follow-up checks and documents attack paths, with every tool run evidenced. Findings are grouped into remediation actions with owners, deadlines and Jira sync, and retests confirm fixes. Agentic red-team campaigns (recon, access, lateral and report agents led by human red teamers) are also offered for TIBER-EU and DORA TLPT style testing. · AIpentix (agentic continuous security testing and agentic red teaming, by Swipergy) pair comparison
- Keepnet Incident Responder AI agent (phishing incident response and agentic security awareness) — Human risk management platform whose AI agent reviews user-reported emails, opens investigations and proposes next steps in Incident Responder, with every action held in a human approval queue; the same agent builds and runs phishing simulations and awareness training. Per-user pricing is published. · Keepnet Incident Responder AI agent (phishing incident response and agentic security awareness) pair comparison
Use-case comparisons
- Email security and phishing-response AI agents — 15 listings (Triage of user-reported phishing, autonomous email threat remediation and AI-run phishing simulation)
- Agentic pentesting AI agents — 14 listings (Autonomous or AI-assisted penetration testing, attack-surface testing and exploitable-path verification)
Related
- Doppel agentic social engineering defense (Email Security, Phishing Triage and agentic takedowns) alternatives
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