Prove it or don’t report it
Every finding is verified with reproducible evidence before it is recorded. We don’t hand over generic lists.
About
How we think,
who we are.
Evidence, scope and judgment. How we work, where we come from and who stands behind it.
How we think
Evidence, scope
and judgment.
Build, learn and share. These principles guide every assessment and every line of Kirux.
Observed is not confirmed
We distinguish what was observed from what was confirmed and state the validation level of every finding.
Authorization first
Nothing starts without an explicit scope and permission. To begin: external, non-destructive, read-only recon.
Judgment stays with the team
AI expands what we can connect and build. Professional review remains part of the service.
About us
Offensive and cloud security,
with a clear scope.
NullGhost is a Mexican offensive and cloud security firm serving companies in Mexico and LATAM. We work with a defined scope, reproducible evidence and reports that serve both leadership and the people who implement the fixes.
Behind NullGhost is Ricardo Martinez, founder, with experience in cybersecurity. Kirux, our platform, grew out of that work.
How we began
From experience
to a platform.
- 1
Experience in cybersecurity
A question that kept coming back: how do we turn what we learned into something others can use?
- 2
NullGhost gave it a place
A brand of our own and a way of working: clear scope, evidence and reports people can understand.
- 3
KIRUX gave it shape
A platform that connects security testing, operations and cloud posture to the findings that matter.
- 4
AI expanded what we could build
More capacity to connect tools and evidence. Judgment stays with the team.
Editorial story from the team. No figures or dates: concrete capabilities are agreed per project.
Partners
The partners
behind NullGhost.
Offensive security, design and brand. Each partner signs their work and answers for it.
Founder and CEO
Ricardo Martinez
Combines offensive security and cloud architecture with applied research. Founded NullGhost and leads Kirux to turn technical findings into useful evidence and clear security decisions.
LinkedIn ↗
Chief Design Officer
Josué Valdés
Turns complex ideas into clear, memorable visual identities. Leads design and visual communication at NullGhost, bringing experience in brand systems and content for Festival de las Ideas.
LinkedIn ↗
Chief Marketing Officer
Iván Pérez
Leads marketing strategy and brand positioning at NullGhost. Connects brand, content, SEO and automation to build visibility, differentiate its offering and develop relationships that drive growth.
LinkedIn ↗Certified team
Credentials behind
the work.
Selected professional certifications and specialist training across security, cloud, applied AI, marketing and measurement. Credentials are held by individual team members; course completion badges are distinct from professional certifications.
Ricardo MartinezSecurity · Cloud · AI and agents
AWS
- AWS Certified Generative AI Developer - Professional
- AWS Certified Security – Specialty
- AWS Certified Solutions Architect – Associate
- AWS Agentic AI Demonstrated
Fortinet
- Fortinet Certified Professional Secure Networking
- Fortinet FortiAnalyzer 7.4 Administrator
Anthropic
- Building with the Claude API
- Model Context Protocol: Advanced topics
- Claude Code 101
Iván PérezMarketing · SEO/AEO · Automation and data
OpenAI
- ChatGPT Solutions Practitioner
HubSpot
- Software de marketing de HubSpot
- Certificado SEO
- Social media marketing
- Answer engine optimization (AEO)
- Reporting
Anthropic
- Building with the Claude API
- Introduction to agent skills
Microsoft
- Create an AI agent with Microsoft Foundry
Platzi
- Curso de Toma de Decisiones Basadas en Datos
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