# Arik Liberzon

> Arik Liberzon is the Israel-based co-founder and board member of Pentera, formerly Pcysys. Drawing on experience leading an IDF red team, he helped turn penetration testing into software. He chose to focus on technology while Amitai Ratzon led the business as CEO, served as CTO during its growth, and announced his departure from the executive role in May 2026 while remaining on the board.

- **Role:** Co-founder and Board Member at Pentera
- **Organizations:** Pentera (formerly Pcysys), Israeli Defense Forces, Aryon Security (angel investor)
- **Education:** BSc in Aerospace Engineering, Technion - Israel Institute of Technology, MBA, Tel Aviv University, Master’s degree in Finance, Ben-Gurion University of the Negev, PhD in Finance, Ben-Gurion University of the Negev
- **Known for:** Co-founded the automated security validation company Pentera in 2015., Created the original product logic and wrote its code, according to the account published by Insight Partners., Helped build Pentera through the period leading to its announced $100 million ARR milestone in January 2026.

## Career timeline

- **Before 2015** — Led an IDF red team testing strategic networks.
- **2015** — Co-founded Pcysys with Arik Faingold.
- **2017** — Met prospective CEO Amitai Ratzon for lunch in September.
- **2018** — Ratzon became CEO in January; Liberzon focused on technology as CTO.
- **2019** — Pentera’s CEO later dated the company’s official go-to-market to 2019.
- **2025** — Explained his choice of CTO over CEO in a January opinion essay; appeared with Ratzon in a May Nasdaq interview.
- **2026** — Announced in May that he had stepped down as CTO and would continue on Pentera’s board.

## Achievements

- Co-founded the automated security validation company Pentera in 2015.
- Created the original product logic and wrote its code, according to the account published by Insight Partners.
- Helped build Pentera through the period leading to its announced $100 million ARR milestone in January 2026.

## Latest updates

- **2026-05** — Publicly announced his departure from the CTO role while retaining a board role.
- **2026-01** — Pentera’s CEO announced that the company had crossed $100 million in annual recurring revenue.
- **2025-05** — Joined CEO Amitai Ratzon and investor Richard Seewald for a Nasdaq interview about enterprise adoption and the Series D.
- **2025-03** — Pentera announced a $60 million Series D.
- **2025-01** — Published an essay explaining why he chose not to become CEO.

## Links

- Website: https://pentera.io
- LinkedIn: https://www.linkedin.com/in/arik-liberzon-3b819739/

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Profile page: https://yespress.io/arik-liberzon
Published by YesPress — https://yespress.io
Last updated: 2026-10-07