# Ross Haleliuk

> Ross Haleliuk is a Ukrainian-born, San Francisco-based cybersecurity entrepreneur, author, angel investor, and operator who built one of the industry's most influential newsletters, 'Venture in Security,' with 21,000+ subscribers. He authored the Amazon bestseller 'Cyber for Builders,' co-founded the world's first angel syndicate exclusively for security practitioners, and currently leads a stealth-mode cybersecurity startup as co-founder and CEO. With a background spanning history studies in Ukraine, product leadership in Canada, and a deep pivot into cybersecurity, he has become a leading voice on building, funding, and growing security companies.

- **Role:** Co-founder and CEO at Stealth Cybersecurity Startup
- **Organizations:** Venture in Security (newsletter/media brand), Venture in Security Angel Syndicate, Building Cyber Collective, LimaCharlie (former - Head of Product)
- **From:** Ukraine
- **Nationality:** Ukrainian-Canadian
- **Education:** History (specialization in Russian history), Ukrainian University (unnamed), Diploma in Project Management / Business and Technology Management, Canadian institution (unnamed)
- **Known for:** Built 'Venture in Security' newsletter to 21,000+ subscribers, widely recognized as a leading source on the business of cybersecurity, Authored 'Cyber for Builders' - Amazon #1 in Cloud Computing, #2 in Computer Network Security, 4.8-star rating from 100+ reviews, Won Book of the Year at SANS Cybersecurity Difference Makers Awards (2024)

## Career timeline

- **early 1990s** — Born in Ukraine following the collapse of the USSR
- **2010s** — Immigrated to Canada at age 22, settled in Vancouver
- **2010s** — Built career in business analysis and project management across e-commerce, retail, and wholesale
- **2010s** — Worked in financial technology for several years
- **2010s-early 2020s** — Co-founded a B2B edtech startup
- **2020s** — Pivoted into cybersecurity; joined LimaCharlie as Head of Product
- **2021** — Launched 'Venture in Security' newsletter on Substack
- **2022** — Published landmark H1 2022 Cybersecurity Product-Led Growth Market Map on TechCrunch, analyzing 800+ products from 600+ vendors
- **2022** — Co-founded Venture in Security Angel Syndicate - world's first angel syndicate exclusively for security practitioners
- **2022-2023** — Co-founded Building Cyber Collective, a community of 220+ founders, advisors, and investors
- **2023-2024** — Authored and published 'Cyber for Builders: The Essential Guide to Building a Cybersecurity Startup'
- **2024** — Book won 'Book of the Year' at SANS Cybersecurity Difference Makers Awards
- **2024 (June)** — Relocated from Vancouver/Canada to San Francisco
- **2024-2025** — Co-founded stealth-mode cybersecurity startup, serving as CEO

## Achievements

- Built 'Venture in Security' newsletter to 21,000+ subscribers, widely recognized as a leading source on the business of cybersecurity
- Authored 'Cyber for Builders' - Amazon #1 in Cloud Computing, #2 in Computer Network Security, 4.8-star rating from 100+ reviews
- Won Book of the Year at SANS Cybersecurity Difference Makers Awards (2024)
- Co-founded world's first angel syndicate exclusively for security practitioners (Venture in Security Angel Syndicate)
- Founded Building Cyber Collective connecting 220+ cybersecurity founders, advisors, and investors
- Analyzed 800+ cybersecurity products from 600+ vendors for landmark TechCrunch market map
- Regular contributor to TechCrunch, Forbes, VentureBeat, World Economic Forum, Dark Reading
- Active angel investor and advisor to multiple cybersecurity startups

## Latest updates

- **2026-04** — Organizing Security Founders' Oasis at RSA 2026
- **2026-04** — Speaking engagement: 'Rethinking SSE: When Unified SASE Delivers the Flexibility Enterprises Need' (April 1, 2026)
- **2025-2026** — Continuing as co-founder and CEO of stealth cybersecurity startup in San Francisco
- **2025** — Venture in Security newsletter surpassed 21,000 subscribers
- **2024** — 'Cyber for Builders' won Book of the Year at SANS Cybersecurity Difference Makers Awards
- **2024-06** — Relocated from Canada to San Francisco

## Links

- Website: https://ventureinsecurity.net
- LinkedIn: https://www.linkedin.com/in/rosshaleliuk
- Twitter/X: https://x.com/rosshaleliuk

---

Profile page: https://yespress.io/ross-haleliuk
Published by YesPress — https://yespress.io
Last updated: 2026-04-21