Overview
Julie Tsai is a Limited Partner at One Way Ventures as of February 2025[10]. Tsai has held multiple concurrent roles in cybersecurity and venture capital, serving as CISO-in-Residence at Ballistic Ventures[3], Cybersecurity Co-Lead at AI Insiders[6], and Faculty at IANS[8], while also founding The Polaris Collective in April 2025[5]. Tsai holds board positions with the Bay Area CSO Council[4] and Advanced AI Society[7], and is a Limited Partner at Rain Capital[9]. Tsai's educational background includes a B.A. in Political Science from Stanford University[11] and Computer Science studies at UC Santa Clara Extension[12]. Tsai is open to Board of Director and publishing/webcasting opportunities[2].
Profile introduction
Open to Board of Director and publishing/webcasting opportunities. I have a bedrock passion for security & privacy — and technology that betters society. Experienced six-time Cybersecurity Head/CISO, incl. two public offerings (RBLX, MRIN) as well as a concurrent TechOps/Platform Head-reporting-to-CEO for private $100M+ company. For Fortune 1, ramped & led +2/3 of Infosec team for $13.5B eCommerce. Proficient with UNIX, shell scripting, cfengine/puppet, perf tuning; OSS roots. Accomplished w/ PCI, IPO-readiness, SOX, GLB, CIS/CCPA, forensics. Config, change & incident mgmt; DR/BC; due dilige…
Career history
- CISO-in-ResidenceAug 2025 to presentBallistic Ventures
- Board Member, MemberJan 2018 to presentBay Area CSO Council
- FounderApr 2025 to presentThe Polaris Collective
- Cybersecurity Co-LeadJun 2025 to presentAI Insiders
- Board Member, AdvisorApr 2026 to presentAdvanced AI Society
- FacultyJun 2025 to presentIANS
- Limited PartnerAug 2022 to presentRain Capital
- Limited PartnerFeb 2025 to presentOne Way Ventures
Education
B.A., Political ScienceStanford University
- Computer Science at UC Santa Clara ExtensionEducation
- H.S.
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