Runsybil

Runsybil

San Francisco, CA, USA
1 employees
Artificial Intelligence (AI)
Seed · $40M

About Runsybil

RunSybil is an AI-native offensive security platform that autonomously discovers and exploits real-world vulnerabilities across modern applications. Sybil agents interact with systems like expert attackers: interacting with systems dynamically, exploring authentication boundaries, finding and validating vulnerabilities, and surfacing real data exposure. The result is continuous, black-box security testing with real validation: no code access required, 90% fewer false positives, and visibility into the vulnerabilities that actually expose data.

Open positions (2)

Company details

Team Size1
LocationSan Francisco, CA, USA
IndustryArtificial Intelligence (AI)

Funding

Total raised

$40M

Last stage

Seed

Investors

Khosla Ventures
SS32
Menlo Ventures
CConviction
EElad Gil

Founders

AH

Ariel Herbert-Voss

OpenAI's first security hire, Harvard ML PhD dropout, core research contributor to GPT-3 and Codex.

LinkedIn
VI

Vlad Ionescu

Former Offensive Security Tech Lead at Meta, Red Teamer at Mandiant and NCC Group, Founder of Red Team X, and Core Llama offensive research lead.

LinkedIn

What happens next.

No applications, no recruiter spam. Just the intro.

01

Confirm the fit

A few questions to make sure this role is the right shape for you. Two minutes.

02

I pitch you to the company

I write the intro, send it to the founder, and handle the back-and-forth.

03

A meeting lands on your calendar

If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.