About KleoSEC

Security experts who understand modern development.

We are a team of certified penetration testers and security researchers who live at the intersection of offensive security and modern software development. As AI coding tools revolutionized development, we saw a gap in the market and built the expertise to fill it.

50+

Security Audits

500+

Vulnerabilities Found

100%

Client Satisfaction

Our Journey
2025 Q1

Founded

Started with traditional penetration testing for academic institutions and private companies.

2025 Q2-Q3

AI Coding Research

We analyzed and tested the repeatable, exploitable weaknesses introduced by AI-generated code.

2025 Q4

AI Focus

Noticed patterns in AI-generated code vulnerabilities. Began developing specialized methodologies.

2026 Q1

Vibe Code Security Pioneers

Launched dedicated Vibe Code Security service. First firm specialized in AI-generated code audits.

Leadership

CEO & Founder

Mislav Kovač

Cybersecurity Specialist | Penetration Tester

Former lead security engineer at a multinational corporation. Specialized in penetration testing, vulnerability assessment, and security architecture review.

Certifications: Security Researcher, OSCP, PNPT, eWPT, CNPen, eJPT

CTO & Co-Founder

Mario Čagalj

Cryptography and Computer Security Specialist

Ph.D. in Computer Science with a focus on applied cryptography, computer and information security. Combines academic rigor with practical security solutions.

Expertise: Full Professor, Ph.D. Swiss Federal Institute of Technology in Lausanne (EPFL), 3700+ Citations, 55 Articles Published

Our Mission
Make AI-assisted development secure by default.

Every startup, every enterprise, every developer deserves access to world-class security expertise. We are building that future.

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