# Tall Poppy Group

> Tall Poppy Group builds, backs, and advises cybersecurity companies, and provides practitioner security advisory to enterprises, investors, and governments.

Tall Poppy Group is the applied cybersecurity firm of founder Casey Ellis (https://cje.io), who founded Bugcrowd in 2012. It founds security companies (the Foundry), advises and backs security startups (the Portfolio), and provides practitioner advisory services. Contact: hello@tallpoppygroup.com

## Pages

- [About Tall Poppy Group](https://tallpoppygroup.com/about/): We build, back, and advise the companies making cybersecurity actually work.
- [Advisory Services](https://tallpoppygroup.com/advisory/): Practitioner advisory for enterprises, investors, family offices, governments, and the startups building in security.
- [Contact Us](https://tallpoppygroup.com/contact/): Get in touch with Tall Poppy Group to discuss investment opportunities or partnerships.
- [Foundry](https://tallpoppygroup.com/foundry/): Companies built, founded, and backed by Tall Poppy Group.
- [Portfolio](https://tallpoppygroup.com/portfolio/): Tall Poppy Group provides investment capital and strategic advisory services to innovative cybersecurity companies.

## Foundry: companies Tall Poppy Group founded

- [White Label Security](https://tallpoppygroup.com/foundry/white-label-security/): The prototype for Bugcrowd. Founded 2010. Role: Founded + Exited. Website: https://whitelabelsecurity.com
- [Bugcrowd](https://tallpoppygroup.com/foundry/bugcrowd/): Crowdsourced security at global scale. Founded 2012. Role: Founded. Website: https://www.bugcrowd.com
- [The Disclose.io Project](https://tallpoppygroup.com/foundry/disclose-io/): Open-source tools for a healthy Internet Immune System. Founded 2018. Role: Founded. Website: https://disclose.io

## Portfolio: advisory companies

- [Dreadnode](https://dreadnode.io): Advancing the state of offensive security.
- [runReveal](https://runreveal.com): The way to query, use, and investigate security logs at scale. Status: Acquired.
- [Truffle Security](https://trufflesecurity.com): Unearth your secrets.
- [Ghost Security](https://ghost.security): App Security. Built by Humans, for AI.
- [Corridor.dev](https://corridor.dev): The AI-powered Secure by Design platform. Status: Acquired.
- [Anetac](https://anetac.com): Identity is the new perimeter. Status: Acquired.
- [The Hacking Games](https://thehackinggames.com): Matching unconventional problem-solvers with cybersecurity careers.
- [Lastwall Networks](https://lastwall.com): Secure identity management for defense and government.
- [Cadence](https://teamcadence.ai): AI productivity tool for distributed teams.

## In the news

- 2026-10-28, Cognition (acquirer announcement): [Corridor is Joining Cognition](https://cognition.com/blog/corridor-joining-cognition) (corridor-dev)
- 2026-08-25, Help Net Security: [TruffleHog AWS Analyze reduces remediation time on leaked AWS credentials](https://www.helpnetsecurity.com/2026/08/25/trufflehog-aws-analyze-leaked-credentials/) (truffle-security)
- 2026-08-21, GovInfoSecurity: [Who Recruits Young Hackers First?](https://www.govinfosecurity.com/who-recruits-young-hackers-first-a-32441) (the-hacking-games)
- 2026-08-21, BleepingComputer: [Hundreds of leaked AWS keys give full control over corporate accounts](https://www.bleepingcomputer.com/news/security/hundreds-of-leaked-aws-keys-give-full-control-over-corporate-accounts/) (truffle-security)
- 2026-07-13, SecurityWeek: [Cybersecurity M&A Roundup: 37 Deals Announced in June 2026](https://www.securityweek.com/cybersecurity-ma-roundup-37-deals-announced-in-june-2026/) (anetac)
- 2026-05-27, SecurityWeek: [Lastwall Raises $11.5 Million for Quantum-Resilient Identity Platform](https://www.securityweek.com/lastwall-raises-11-5-million-for-quantum-resilient-identity-platform/) (lastwall-networks)
- 2026-05-21, Help Net Security: [AI red teaming agents change how LLMs get tested](https://www.helpnetsecurity.com/2026/05/21/ai-red-teaming-agents-research/) (dreadnode)
- 2026-03-18, Forbes: [These 26-Year-Old Founders Quit DHS And Built A $200 Million AI Cyber Startup](https://www.forbes.com/sites/thomasbrewster/2026/03/18/corridor-200-million-ai-cyber-startup/) (corridor-dev)

## Contact

- Email: hello@tallpoppygroup.com
- Contact page: https://tallpoppygroup.com/contact/
- LinkedIn: https://linkedin.com/company/tallpoppygroup
- X / Twitter: https://twitter.com/tallpoppygroup