You asked about IoT Security
28 people built something like it. 0 are gone.
That is 0% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2025-06-01 | AI infrastructure for biosecurity · twentytwo.bio | still up |
| 2025-06-01 | Infrastructure Cartography · riverbank.sh | still up |
| 2025-01-01 | Agents for Accelerated Clinical Trial Design · delineate.pro | still up |
| 2025-01-01 | YCConntour AI to monitor thousands of security cameras. · conntour.com | still up |
| 2025-01-01 | AI powered operating system for distributors and OEMs · salespatriot.com | still up |
| 2025-09-01 | YCComplyDo Global Compliance for Enterprises · complydo.io | still up |
| 2025-01-01 | AI drug discovery platform for neurotherapeutics · exintherapeutics.com | still up |
| 2025-01-01 | Autonomous patrol-boats for National Security · splash9.com | still up |
| 2025-09-01 | Zero-trust authentication, authorization, and auditing for AI agents · multifactor.com | still up |
| 2025-06-01 | YCGhostEye Your always-on red team. · ghosteye.ai | still up |
| 2025-09-01 | YCAntigen Continuous offensive security for the enterprise. · antigen.sh | still up |
| 2025-01-01 | YCSubImage The Open-Core Security Graph · subimage.io | still up |
| 2025-09-01 | A Foundation Model for Microbial Communities. · anto.bio | still up |
| 2025-06-01 | YCConvexia The world's first AI-maximalist pharma company · convexia.bio | still up |
| 2025-09-01 | Perimenopause Care Platform · playhealth.com | still up |
| 2025-06-01 | YCb12 Labs Making hard molecules for Pharma and Biotech · b12-labs.com | still up |
| 2025-09-01 | Continuous AI pentesting that finds and fixes vulnerabilities · verialabs.com | still up |
| 2025-01-01 | YCCandor Protect your data and stop insider risk · candor.security | still up |
| 2025-01-01 | YCArchon We help software companies sell to government. · archon.inc | still up |
| 2025-09-01 | YCSemiotic Studio-Grade Design at Scale · semiotic.com | still up |
| 2025-06-01 | YCPangolin Open networking and security for your workforce, AI agents, and infra · pangolin.net | still up |
| 2025-09-01 | AI Agents for Platform Engineering · usekestrel.ai | still up |
| 2025-09-01 | YCScoop Automating regulatory submissions for life sciences · scooplabs.ai | still up |
| 2025-06-01 | The continuous oversight engine for clinical trials · panoptive.com | still up |
| 2025-06-01 | YCAlter Secure access control and authorization platform for agent workflows · alterauth.com | still up |
| 2025-06-01 | Visibility and Controls for Browser Agents · contextfort.ai | still up |
| 2025-01-01 | A Disease Focused Biotech, Building Multiple Billion Dollar Drugs · uncommontherapeutics.com | still up |
| 2025-09-01 | The sensitive data redaction layer for AI · logosguard.com | still up |
How this compares
The register re-probes every domain it holds. Some that answered last month stop answering. We send that list — what went quiet, and what it was — once a month. Nothing else.
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.