You asked about Privacy
21 people built something like it. 6 are gone.
That is 32% of the ones whose fate we could settle, against 23% across the whole register. 2 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2014-06-01 | Rebuilding data in advertising to protect privacy · permutive.com | still up |
| 2022-01-01 | YCOptery Opt out software that removes your private info from the internet · optery.com | still up |
| 2022-01-01 | Enterprise Deepfake Detection · realitydefender.com | still up |
| 2022-01-01 | Compliant-Ready AI for the Enterprise · dynamo.ai | still up |
| 2021-01-01 | YCSpruceID SpruceID lets users control their data across the web. · spruceid.com | still up |
| 2021-01-01 | AI-powered Compliance Platform for PCI 4, CCPA, HIPAA, CIPA, 50+ laws · feroot.com | still up |
| 2024-06-01 | Automate security and privacy reviews · clearly-ai.com | still up |
| 2012-06-01 | We're a mobile on-device profiling and ad-serving platform initially… · mthsense.com | still up |
| 2021-06-01 | AI-driven mobile cybersecurity · mallocprivacy.com | still up |
| 2016-06-01 | Network for decentralized threshold cryptography and end-to-end… · threshold.network | gone |
| 2024-06-01 | YCUnbound Use AI tools without fear of data leakage · getunbound.ai | still up |
| 2016-01-01 | Information Security (Cyber Security), Compliance and Privacy (GDPR &… · stealthworker.com | still up |
| 2023-06-01 | Aide is an AI-native , privacy-first IDE built on top of VSCode · aide.dev | gone |
| 2011-06-01 | Server key management, VPN as a Service, Privacy VPN. Sold to… · cryptoseal.com | acquired |
| 2019-06-01 | We help companies comply with privacy laws like GDPR. Many of these… · preclus.io | gone |
| 2023-06-01 | YCVizly Data to insights in seconds · vizly.fyi | gone |
| 2026-06-01 | Your personal context, securely portable across every AI app. · ego.ist | still up |
| 2016-06-01 | YCFabric Fabric is a personal location-based journal that catalogs experiences… · fabric.me | acquired |
| 2023-01-01 | YCBlyss End-to-end encrypted AI. · blyss.dev | gone |
| 2014-01-01 | We make Privacy Software for SMBs. · truevault.com | still up |
| 2012-01-01 | Client-side encryption for your devices and the cloud. · documents.me | gone |
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.