About Halis Erkan
Halis Osman Erkan is the founder and CEO of DefensX, the browser security business of Secure Industries, Inc. in New York. DefensX was founded in 2018. Revo Capital invested in the company in 2023, and Elsewhere Partners made a growth investment in July 2026.
Earlier he was general manager and then CEO of Kron (Krontech), a telecom and cybersecurity software company. He is also a principal investor in O1 Technologies.
Experience
This experience comes from official bios and from SEC filings. For roles taken from filings, the years are when the filings name Halis Erkan in the role, so the role may have started earlier or lasted longer.
Secure Industries, Inc. Current
Founder and Chief Executive Officer
Director
2021 – Present · New York, NY
Runs DefensX, a browser extension that adds phishing defense, data loss prevention and AI controls, sold through managed service providers.
OT
O1 Technologies
Principal investor
KK
Kron (Krontech)
Chief Executive Officer
General Manager
Key Colleagues at Startups
The people Halis Erkan works with at each company, as listed on that company's latest Form D.
Secure Industries, Inc. · Form D, Jul 20, 2026
Alexander Russo
Board Member
Murat Demirten
Founder and Chief Technology Officer, director
Nick Stoffregen
Board Member
Cenk Bayrakdar
Board Member
Halis Erkan in the News
Sources
- SECSecure Industries, Inc. Form D, filed Jul 20, 2026
- Press releaseDefensX names David Arthur Walsh Chairman, July 2020 (defensx.com)
- Company sitePrivacy policy on defensx.com, issued by Secure Industries, Inc.
- Company siteKron annual report 2016 on krontech.com, other executives table
- Press releaseKrontech press release, October 26, 2017 (PRWeb)