01
See where the real risk sits.
Winfunc reads the codebase as a system. That keeps attention on reachable issues and cuts out a lot of scanner junk.
Find
Backed byY
Autonomous AI-native security audits.
Winfunc combines SAST, DAST, IaC, and SCA into one AI-native security audit that finds real vulnerabilities, proves impact, and helps teams ship fixes.
For teams shipping code that can't fail quietly · For companies where security is part of the product · For engineers who want proof before they merge
Finds real 0-days and P0s in minutes — see for yourself
Finds what other AI scanners miss — hear from our customers
Found real vulnerabilities in
How it works
From signal to fix.
The flow is simple on purpose: find the bug, prove it, hand engineering something they can use.
02
Show how the bug actually breaks.
Each finding comes with the exploit path, the setup, and the reason it matters. Engineering doesn't have to guess what makes it real.
Prove
03
Hand off fixes people can merge.
Patch guidance stays close to the code path that caused the issue, so teams spend less time translating generic advice into safe changes.
Fix
Evidence
Show the proof.
These views answer the questions teams ask in real reviews: what broke, how it broke, and what to change.
Exploit verification
Proof that ends the argument fast.
The report shows the exploit path, the blast radius, and the next move. That gives engineering, security, and leadership the same picture.
Data-flow analysis
Follow the bug through the system.
You can trace input from entry point to sink, with the surrounding business logic still intact. That's where the expensive bugs usually hide.
Patch delivery
Fixes that respect the code around them.
The point is simple: move from bug found to patch reviewed and shipped faster.
Selected findings
Public cases with real detail.
The archive shows the kinds of bugs Winfunc finds and how the work gets written up.
View all findingsWhat customers said
“Winfunc surfaced exploitable issues our own engineering team still wanted to patch immediately.”
We have built security-sensitive systems before, and the initial run still delivered findings with real operational value. The difference is that the output is evidence-led, not noisy.
Dennis
Co-Founder & CEO, Surge
YC F24
“The agent found complex bypasses other tools missed, then made verification straightforward.”
The strongest part of the experience is the proof. The report, reproduction path, and remediation guidance are aligned enough that engineering can move fast with confidence.
Noah
Co-Founder & CEO, Scout
YC W25
“The onboarding was fast, the scan was deep, and the team understood the return on engineering time.”
For security work to be adopted it has to be both easy to start and worth the effort. Winfunc delivered both for our team on the first pass.
Ram
Co-Founder, Sei
YC W22
“Winfunc offers a great user experience for discovering and researching potential security issues.”
For a company like us where security is the top priority, having a platform like Winfunc to catch these issues early before they impact the broader ecosystem is a huge plus. A very well-thought-out product.
Bereket Engida
Founder, Better Auth
YC X25
Research
Notes from the lab.
Write-ups, disclosures, and technical thinking from the team.
All research
FAQ
Common questions.
Winfunc uses a combination of on-the-fly generated tree-sitter queries, language servers, and LLM-powered analysis to ingest codebase context with high accuracy. We support all major programming languages.
We have demonstrated this by finding vulnerabilities in the old HackerNews codebase written in Arc, a dialect of Lisp with no parsers in the wild.
Next
Start with the work.
Book a call, request an audit, or read the public findings first.
