You asked about Security
18 people built something like it. 1 is gone.
That is 6% of the ones whose fate we could settle, against 23% across the whole register. 1 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2022-01-01 | Identity Verification API for Emerging Markets · prembly.com | still up |
| 2022-06-01 | YCOneleet YC's most popular security compliance platform (SOC 2, ISO 27001,… · oneleet.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 | YCAgency Agency replaces traditional security and compliance headcount with AI. · getagency.com | still up |
| 2022-01-01 | YCMunily Access control management app for Latam´s gated communities · munily.com | still up |
| 2022-01-01 | YCCinder Infrastructure to protect companies from AI abuse · cinder.ai | still up |
| 2022-06-01 | Managing your Employees' Access to SaaS · accessowl.io | still up |
| 2022-06-01 | Enterprise software for enterprise risk and cyber fraud intelligence · overwatchdata.ai | still up |
| 2022-01-01 | YCStrac Data Discovery, DLP, DSPM for SaaS, Cloud, Gen AI & Endpoints · strac.io | still up |
| 2022-01-01 | Accelerate verifiable computing · argument.xyz | still up |
| 2022-01-01 | YCNetmaker Automated WireGuard networks for distributed systems and Kubernetes · netmaker.io | still up |
| 2022-01-01 | Detect cyber attacks on critical physical infrastructure · palitronica.com | still up |
| 2022-06-01 | YCWolfia We help security, legal and sales teams answer customer questions · wolfia.com | still up |
| 2022-06-01 | The IAM Policy Copilot · slauth.io | gone |
| 2022-01-01 | YCBunkyr Zero-Knowledge security without seed phrases or backup codes · bunkyr.com | still up |
| 2022-01-01 | YCFirezone Easiest way to set up Zero Trust Access for your team · firezone.dev | still up |
| 2022-01-01 | YCJumpWire Dynamic access controls for all data and databases · jumpwire.io | acquired |
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.