TK Matima

Cybersecurity specialist, security researcher and author.

I have more than a decade of experience across cybersecurity, combining hands-on technical research with governance, risk and clear communication. My work spans security research, penetration testing, incident response, training and awareness, and governance, risk and compliance.

Security Research · Publications · LinkedIn

Recognition

Microsoft recognised me as a Top 100 Security Researcher of 2018 for identifying and responsibly disclosing multiple zero-day vulnerabilities in Microsoft products.

I publish security research under the alias Dmitri Kaslov. My findings have also been acknowledged by other technology companies.

Areas of expertise

• Security research and vulnerability discovery and remediation

• Penetration testing

• Governance, risk and compliance

• Incident response management

• Security training and awareness

Experience

I have worked across consulting, financial services, technology and blockchain organisations, including:

• Wolfpack Information Risk

• ABSA Group

• SensePost — now part of Orange Cyberdefense

• PwC

• TelSpace Systems / TelSpace Africa

• Tari Labs

• Sage

Publications and writing

My published work includes peer-reviewed research on tourism and blockchain technology, a co-authored book, and cybersecurity commentary and analysis.

View publications · Read my writing

Beyond cybersecurity

Before beginning my cybersecurity career, I founded and led a youth-run non-profit organisation for nearly ten years.