Christine Castro

About Christine Castro

I run marketing for cybersecurity companies at the moments that decide whether they scale. Sometimes that means building the function from nothing: first positioning, first campaigns, first hires. Just as often it means taking over a team that already exists and getting it pointed at pipeline, or repositioning a product after the market moved. Since 2023 I’ve done this as a fractional CMO and GTM advisor to Seed through Series C security companies, alongside full-time VP and CMO roles at DoControl, DuskRise, HYPR, Morphisec, and others. The work runs on Observe / Analyze / Execute, a framework I developed across those roles. Observe the market, the buyer, and the pipeline as they actually are. Analyze where marketing, sales, and product are pulling in different directions. Execute a 30-60-90 plan the team can run without me standing over it. In practice that covers category positioning and messaging, demand generation that sales trusts, product marketing that ships with the roadmap, hiring plans and org design for the marketing team, board-level reporting, and agentic AI systems that take the repetitive work off a lean team. You can see how I think before we talk. christinecastro.com hosts GTM Radar, a live database of open go-to-market roles at pre-IPO cybersecurity companies, plus a free seven-minute GTM Scan, a pipeline coverage calculator, a hiring scope builder, and a 300-term cybersecurity glossary. The full GTM Alignment Diagnostic and the founder and budget tools go deeper for teams that want a complete plan. If you’re a founder or CEO who needs senior marketing leadership now, start with the free GTM Scan at christinecastro.com.