# Oege de Moor

> Oege de Moor is the founder and CEO of XBOW, an autonomous offensive security company. A Dutch computer scientist based in Sliema, Malta, he previously founded Semmle, acquired by GitHub in 2019, and led the creation of GitHub Copilot. His career connects mathematical programming research, Oxford teaching, developer tools and AI security testing.

- **Role:** Founder and CEO at XBOW
- **Organizations:** XBOW, Semmle, GitHub, University of Oxford, Magdalen College
- **Nationality:** Dutch
- **Education:** Undergraduate studies; degree title not specified in the college biography, Utrecht University, DPhil, University of Oxford
- **Known for:** Cofounded Semmle, whose CodeQL technology became part of GitHub’s security tooling., Led the creation of GitHub Copilot., Coauthored Algebra of Programming with Richard Bird.

## Career timeline

- **1987** — Completed undergraduate studies at Utrecht.
- **1992** — Obtained an Oxford DPhil; held a Junior Research Fellowship at St John’s during his studies.
- **1993** — Elected tutor in computation at Magdalen College.
- **1996** — Algebra of Programming, coauthored with Richard Bird, published in September.
- **2006** — Founded Semmle.
- **2015** — Became an emeritus fellow at Magdalen to focus on Semmle.
- **2019** — GitHub announced its acquisition of Semmle on September 18.
- **2020** — Wrote a December memo sketching what would become GitHub Copilot, according to his interview account.
- **2021** — GitHub Copilot launched; de Moor led its creation.
- **2024** — Founded XBOW in January.
- **2025** — XBOW reached the top of HackerOne’s global leaderboard in June.
- **2026** — XBOW announced a $120 million Series C in March and a $35 million extension in May; reported its Chrome full-chain bounty in October.

## Achievements

- Cofounded Semmle, whose CodeQL technology became part of GitHub’s security tooling.
- Led the creation of GitHub Copilot.
- Coauthored Algebra of Programming with Richard Bird.
- Led XBOW as it reached the top of HackerOne’s global leaderboard in June 2025.
- XBOW announced a Google Chrome full-chain exploit bounty of $250,000 in October 2026, earned through collaboration between human researchers and AI.

## Latest updates

- **2026-10** — On October 13, announced XBOW’s $250,000 Chrome full-chain bounty and described the six-day construction of the awarded exploit after earlier research; the affected bugs were fixed.
- **2026-10** — XBOW announced private-preview data residency in Australia, Canada and Japan on October 14.
- **2026-09** — XBOW introduced Autonomous Exposure Management for testing external application estates.
- **2026-05** — XBOW added $35 million in strategic Series C financing and reported more than 100 customers and 250 employees.
- **2026-03** — XBOW announced a $120 million Series C at a valuation above $1 billion.

## Links

- Website: https://xbow.com/
- LinkedIn: https://www.linkedin.com/in/oegedemoor/
- Twitter/X: https://x.com/oegerikus
- GitHub: https://github.com/oegerikus

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Profile page: https://yespress.io/oege-de-moor
Published by YesPress — https://yespress.io
Last updated: 2026-10-27