Cybersecurity
Security testing, vulnerability research, secure systems, risk thinking and practical information security work.
Cybersecurity • Education • AI Security
Dulmina Peiris.
Cybersecurity Professional, IT Educator and AI Security Researcher.
I focus on practical cybersecurity, technology education and research into the security challenges created by modern AI systems. In my free time, I also build applications that solve real-world problems.
Professional focus
Where my work is centered.
Three areas describe my current professional direction more accurately than a long list of services.
IT Education
Teaching ICT through ICTX from Grade 6 to Advanced Level, with an emphasis on clear explanations and practical understanding.
AI Security Research
Researching safer AI workflows, sensitive-data protection, prompt security and security challenges around modern language models.
Tools & technologies
A practical security toolkit.
Selected tools I use or have worked with across security testing, reconnaissance, analysis and application security.
Kali Linux
Burp Suite
Nmap
Metasploit
Wireshark
Nessus
OWASP ZAP
Nuclei
sqlmap
Postman
Hashcat
John the Ripper
Hydra
Maltego
Shodan
Amass
Subfinder
Ghidra
IDA
x64dbg
Aircrack-ng
Gobuster
ffuf
Nikto
OpenVAS / Greenbone
Selected work
All projects →Projects and research.
Practical work is the best explanation of what I have learned, researched and built.
Current direction
Cybersecurity continues to change with AI.
My undergraduate research led me further into AI security. I am especially interested in how sensitive data, unsafe prompts and software context can be handled more safely before interacting with AI systems.
Writing
All articles →Cybersecurity, AI security and practical IT.
I use articles to document useful ideas, research lessons and technical concepts in a way that can help other people.
AI Security
Deepfakes and Cybersecurity: How AI-Generated Voice and Video Are Used in Fraud
Learn how AI-generated voice and video can support impersonation scams, why detection is difficult, and how people and organisations can verify high-risk requests.
Cybersecurity
Identity Theft Explained: How It Happens and How to Protect Yourself
Learn what identity theft actually means, how stolen personal information is abused, and the practical steps that reduce identity and account takeover risk.
Cybersecurity
SQL Injection Explained: From Vulnerable Query to Secure Application
Understand how SQL injection happens, why string concatenation is dangerous, and how parameterized queries, validation and least privilege protect applications.
Services
View services →ICT education and a Smart Studio in Gampaha.
My current paid services are focused on education through ICTX and access to a prepared studio environment.
ICTX
ICT Classes
Online ICT classes for Grade 6 to Grade 13, including O/L and A/L, in English and Sinhala medium.
Grade 6 to 13Online nowPhysical from 2027
Explore classes → GampahaSmart Studio Space
A 300 sq. ft. air-conditioned studio for online classes, meetings and presentations with smart boards, cameras, lighting and audio facilities.
Paid bookingSmart equipmentContact for availability
View studio → Contact
Get in touch.
For any enquiry, you are welcome to send me a message through the contact page.
Gallery
View gallery → A few moments I wanted to keep here.
Selected photos from work, education, events and personal memories.
