On Lounge since Oct 2026
Gelei Deng
Member #180FounderBasic · freeBetaL1Founder, Independent
Ph.D. in Cybersecurity from Nanyang Technological University. Leading AI security R&Dat Quantstam
Achievements
Plugged InConnected sources: GitHub, Hugging Face, LinkedIn, X, website.How: Connected 1 source (GitHub, LinkedIn, X or a website) in Settings
Plugged In
VerifiedARR band verified by an admin.How: Had their ARR band verified by the Lounge team
VerifiedFeatured
Founding MemberOne of the first 500 members.How: Joined Lounge in the founding cohort
Founding Member
About
Gelei Deng is a Singapore-based founder and AI security researcher who co-founded Common Defense, an AI cyber lab that helps organizations detect and respond to AI-powered social engineering, phishing and other security incidents. Gelei holds a PhD in cybersecurity from Nanyang Technological University. He is the first author of MasterKey (NDSS 2024), a paper on automated jailbreaks of large language model chatbots, and he created PentestGPT, an open-source tool that uses LLMs to automate penetration testing.
Experience
Automating Security with AI | Ph.D. Cybersecurity | OpenAI Red Team | OSWE, OSCP
AI Engineer · Common Defense
AI Engineer · Quantstamp, Inc.
Auditor · Quantstamp, Inc.
Research Assistant · Nanyang Technological University
Research Engineer · A*STAR - Agency for Science, Technology and Research
