Ryan Sebastian
Founder of Ghost Protocol — a cybersecurity and software studio in Colombo, Sri Lanka.
Ryan founded Ghost Protocol in 2024 to build production-grade security tools and software from Colombo, Sri Lanka. The work spans penetration testing, security architecture, and the persistent AI memory system, Wyrm.
On this blog he writes about what actually happens when you ship and secure real systems: automated penetration testing, the OWASP Top 10, the true cost of a data breach for small businesses, AI memory and the Model Context Protocol, and case studies from building platforms that pay for themselves.
What I Write About
Penetration testing, OWASP Top 10, breach economics, and the defenses small teams can actually afford.
Persistent AI memory, the Model Context Protocol, and giving stateless assistants long-term context.
Real builds — what worked, what it cost, and the math behind rebuilding versus patching.
Posts by Ryan
How We Digitized a Traditional Restaurant in 2 Weeks
Why Your AI Forgets Everything (And How Wyrm Fixes It)
I Ran 75 Automated Scanners Against My Own App — Here's What Broke
The Real Cost of a Data Breach for Small Businesses
Why Your Web App Needs a Penetration Test Before Launch
Building AI Memory Systems: Lessons from Wyrm
The True Cost of Technical Debt in Restaurant Platforms
More on Ghost Protocol
Read about the studio, its principles, and the tools behind the writing.