You asked about Security

177 people built something like it. 28 are gone.

That is 18% of the ones whose fate we could settle, against 23% across the whole register. 25 were acquired.

Matching
188
Gone
18%
Median life
Acquired
25

Matching launches · 60 of 188

checked 7 hours ago · 250 probed today
LaunchedWhat it wasToday
2018-01-01
Vanta—the proven leader in automated compliance helping startups… · vanta.com
still up
2019-06-01
TRM is building a safer world for billions of people. · trmlabs.com
still up
2022-03-15
securitypage.fyi
gone
2015-06-01
The Infrastructure Identity Company · goteleport.com
still up
2022-10-05
beaglesecurity.com
still up
2012-01-01
Authy is a Two-Factor Authentication platform for developers · authy.com
acquired
2016-01-01
Protects organizations from getting breached through their APIs. · salt.security
still up
2021-01-01
Cyble - World’s First Intelligence-Driven, AI-Native Security… · cyble.com
still up
2022-06-02
drata.com
unverified
2021-11-29
jvsg.com
still up
2020-01-01
Cybersecurity awareness for fast growing companies · tryriot.com
still up
2017-01-01
AI company transforming enterprise physical security to prevent… · ambient.ai
still up
2022-03-31
trustpage.com
gone
2012-06-01
Secure Collaboration for Technical Teams · mattermost.com
still up
2018-01-01
Sqreen is the application security platform for the modern enterprise · sqreen.com
acquired
2022-06-27
cloud.armosec.io
still up
2022-01-01
Identity Verification API for Emerging Markets · prembly.com
still up
2018-01-01
Security auditing for Web3 · quantstamp.com
still up
2022-06-01
YC's most popular security compliance platform (SOC 2, ISO 27001,… · oneleet.com
still up
2021-06-01
AI-native on-call and incident response carefully crafted to help… · rootly.com
still up
2022-03-02
argos-security.io
still up
2020-06-01
Trust Center platform that scales customer security reviews · safebase.io
acquired
2018-01-01
Anjuna enabled organizations to trust any infrastructure · anjuna.io
still up
2022-01-01
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
2021-02-13
ai-cam.app
moved
2023-01-01
Unified platform for secrets, certs, and privileged access management · infisical.com
still up
2022-01-01
Agency replaces traditional security and compliance headcount with AI. · getagency.com
still up
2020-06-01
The Notabene platform is the trust layer for global money movement. · notabene.id
still up
2021-12-14
impervious.com
still up
2010-06-01
Secure Enterprise Collaboration. · aerofs.com
acquired
2017-06-01
Turnkey security & hassle-free cyber insurance from leading insurers · upfort.com
still up
2019-01-01
Termius is an SSH client with team collaboration features · termius.com
still up
2021-01-01
Authorization Infrastructure securing AI at OpenAI, Zoom, & more · authzed.com
still up
2023-05-05
dys2p.com
still up
2022-01-01
Access control management app for Latam´s gated communities · munily.com
still up
2022-01-01
Infrastructure to protect companies from AI abuse · cinder.ai
still up
2023-01-01
Offensive security for the teams that are 100x outnumbered · escape.tech
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
2019-01-01
Secure secrets. Prevent breaches. Keep teams moving. · doppler.com
still up
2021-01-01
AI-powered Compliance Platform for PCI 4, CCPA, HIPAA, CIPA, 50+ laws · feroot.com
still up
2019-06-01
Canix makes it easy to get and stay compliant as a cannabis business. · canix.com
still up
2016-01-01
Block bots & bad behavior · castle.io
still up
2020-06-01
Manage every device. Govern every AI agent. · swif.ai
still up
2023-10-18
kerkour.com
still up
2024-06-01
Automate security and privacy reviews · clearly-ai.com
still up
2023-01-17
caido.io
still up
2020-01-01
Datree prevents Kubernetes misconfigurations from reaching production · datree.io
gone
2019-01-01
MedCrypt gives medical device vendors cybersecurity features in a few… · medcrypt.co
still up
2024-06-01
Drone detection for US defense and national security · guardianrf.com
still up
2022-06-01
Managing your Employees' Access to SaaS · accessowl.io
still up
2025-01-01
AI to monitor thousands of security cameras. · conntour.com
still up
2021-06-01
Security Delivery Platform to orchestrate AI agents for Service… · contraforce.com
still up
2023-02-14
openapi.security
gone
2022-06-01
Enterprise software for enterprise risk and cyber fraud intelligence · overwatchdata.ai
still up
2023-11-07
trustypkg.dev
gone
2023-01-01
The Control Plane for Enterprise Agents · credal.ai
still up
2020-01-01
AI agent for Compliance Questionnaires Automation · skypher.co
still up
2021-09-12
mf327.com
moved

How this compares

Where they launched

share gone · line is the 23% average
  1. Product Hunt 450%
  2. Show HN 1631%
  3. Y Combinator 13216%

Y Combinator reports its own outcomes, including acquisitions. The other two are judged by asking the domain, so they are not measured the same way and are never averaged together.

By year launched

share gone · line is the 23% average
  1. 2021 2035%
  2. 2022 2313%
  3. 2023 2015%

Older launches have had longer to die, so this slope is expected. A year that broke it would mean something is wrong with the checking.

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.