You asked about Security

49 people built something like it. 4 are gone.

That is 8% of the ones whose fate we could settle, against 23% across the whole register.

Matching
49
Gone
8%
Median life
Acquired
0

Matching launches

checked 12 hours ago · 250 probed today
LaunchedWhat it wasToday
2021-01-01
Cyble - World’s First Intelligence-Driven, AI-Native Security… · cyble.com
still up
2017-01-01
AI company transforming enterprise physical security to prevent… · ambient.ai
still up
2021-06-01
AI-native on-call and incident response carefully crafted to help… · rootly.com
still up
2022-01-01
Agency replaces traditional security and compliance headcount with AI. · getagency.com
still up
2021-01-01
Authorization Infrastructure securing AI at OpenAI, Zoom, & more · authzed.com
still up
2022-01-01
Infrastructure to protect companies from AI abuse · cinder.ai
still up
2017-06-01
Enable creators and developers to generate realistic AI personas · d-id.com
still up
2024-01-01
Autonomous offensive and defensive cybersecurity platform · codeant.ai
still up
2021-01-01
AI-powered Compliance Platform for PCI 4, CCPA, HIPAA, CIPA, 50+ laws · feroot.com
still up
2020-06-01
Manage every device. Govern every AI agent. · swif.ai
still up
2024-06-01
Automate security and privacy reviews · clearly-ai.com
still up
2021-06-01
Security Delivery Platform to orchestrate AI agents for Service… · contraforce.com
still up
2025-01-01
AI to monitor thousands of security cameras. · conntour.com
still up
2023-01-01
The Control Plane for Enterprise Agents · credal.ai
still up
2023-01-01
AI Agents for Fraud Review and Investigations · variance.com
still up
2020-01-01
AI agent for Compliance Questionnaires Automation · skypher.co
still up
2021-06-01
AI-driven mobile cybersecurity · mallocprivacy.com
still up
2021-06-01
AI-powered Application Control · idemeum.com
still up
2019-06-01
Transform your video monitoring with AI · traces.ai
still up
2021-06-01
Never code alone. · squire.ai
gone
2022-01-01
Data Discovery, DLP, DSPM for SaaS, Cloud, Gen AI & Endpoints · strac.io
still up
2024-06-01
Use AI tools without fear of data leakage · getunbound.ai
still up
2025-09-01
Zero-trust authentication, authorization, and auditing for AI agents · multifactor.com
still up
2020-01-01
AI for security cameras · visualone.tech
gone
2026-06-01
AI cybersecurity for financial institutions' digital assets · verdictmachine.com
still up
2021-06-01
Web infra for AI agents · hyperbrowser.ai
still up
2026-06-01
Autonomous AI defense system for cyber attack · nebusec.ai
still up
2025-06-01
Open networking and security for your workforce, AI agents, and infra · pangolin.net
still up
2025-06-01
AI infrastructure for biosecurity · twentytwo.bio
still up
2025-09-01
Continuous AI pentesting that finds and fixes vulnerabilities · verialabs.com
still up
2026-01-01
Frontier AI Defenses for Social Engineering Attacks · beesafe.ai
still up
2024-01-01
Risotto auto-solves IT support requests using AI · tryrisotto.com
still up
2023-01-01
Detect every data leak into third-party GenAI tools · compliantllm.com
still up
2026-01-01
AI for Corporate Security Cameras · lexius.ai
still up
2026-06-01
The world's frontier hacker of AI agents. · fabraix.com
still up
2024-01-01
Security for AI-native developers · superagent.sh
still up
2024-01-01
Open-Source AI-generated image/deepfake detection · nonescape.com
gone
2024-09-01
The AI Security Engineer to Find and Fix Vulnerabilities · gecko.security
still up
2025-09-01
The sensitive data redaction layer for AI · logosguard.com
still up
2023-01-01
End-to-end encrypted AI. · blyss.dev
gone
2026-06-01
Training company-specific models that approve AI actions. · decawork.ai
still up
2026-01-01
The control plane for AI agents. · agenticfabriq.com
still up
2025-09-01
AI Agents for Platform Engineering · usekestrel.ai
still up
2026-06-01
CrowdStrike for AI Agents · traceforce.ai
still up
2024-06-01
ai-native security engineering for mission critical codebases · winfunc.com
still up
2026-06-01
AI that finds and fixes OS-level vulnerabilities across device fleets · palisade-ai.com
still up
2024-01-01
The open source AI-native security automation platform · tracecat.com
still up
2026-06-01
The open source AI teammates for your company. · onecli.sh
still up
2024-01-01
LLM Security and Compliance · promptarmor.com
still up

How this compares

How this was made. Show HN entries are every post from 2021 to 2023 with at least five points that linked to its own domain; code hosts and free hosting are excluded, because a repository outlives the effort behind it. Product Hunt entries needed 100 votes — a far higher bar, so they are the promoted top slice rather than a like-for-like sample. Both are judged by asking the domain whether it still answers: gone means it no longer resolves, refuses the connection, serves a parking page, or says plainly that it shut down. An HTTP error is not counted as gone — a server answering 404 is one somebody still pays for, and an audit of 25 gone-calls found two such sites alive with only a moved homepage. Y Combinator entries use the status YC publishes itself, which is why only those can say acquired. Squatted domains — a lapsed name now serving somebody else's site — are not detected, so these figures run slightly low.