About

I am Rahul Kumar, a PhD student in Information Technology (Cybersecurity concentration) at George Mason University, supervised by Prof Mingkui Wei, where I also completed my M.S. in Information Systems and Cybersecurity Engineering (GPA 3.9/4.0). My research focuses on Web Application Security, CAPTCHA bypass techniques, and malware analysis.

Previously, I worked as a Security Analyst at JSC Golla Engineering Pvt Ltd , VAPT Analyst at Bluefire Redteam and as a Software Intern at The Sustainablity Cloud, focusing on SIEM alert investigation, vulnerability management, and cryptography.

Current roles

• Graduate Teaching Assistant, George Mason University (Computer Networking & Cyber Security courses)
• Research on CAPTCHA security flaws and automated web crawling for e-commerce data collection

Research Interests

• Web Application Security
• Penetration Testing
• CAPTCHA Security

News

• [Dec. 2025] Attended Workplace Ninjas US
• [Nov. 2025] Attended Security+Privacy Forum – Fall Academy
• [Oct. 2025] Participated at TogetherWeHack Hackathon by Amazon, HackerOne and WiCyS a and secured 15th rank