Leonid Posadskov is the founder and CEO of Luminari Inc., a Japan-based security-first consulting bureau. He is leading development of Siminari, a gamified cybersecurity training simulator that combines immersive environments with AI-driven learning to improve resilience across enterprises, universities, and government agencies.

A cybersecurity engineer and researcher who builds security tools purely for fun. In 2025, I presented at Black Hat USA Arsenal, BSidesLV, and SecTor Arsenal—all on my own dime. As my travel expenses and alcohol consumption both continue to grow exponentially, I spend my nights drinking and dreaming up new tools… mostly to avoid facing the harsh reality.

Security Researcher

I am a security engineer in the PSIRT team at Cybozu. Recently, I have been focusing on system hardening and LLM (Large Language Model) security.

Atsushi, Sada is CSIRT member in fintech startups with expertise in Cloud Security(aws, github), Enterprise Security(EDR, MDM). He is the organizer of @sec_wakate. and was presented at BlackHat Arsenal, JSAC, AWS Security JAWS.

He is a Cyber Threat Intelligence Operations Architect at the Innovation Center, NTT DOCOMO Business, Inc. Since around 2012, he has been engaged in the development of security-related systems, contributing to a variety of security projects including the development, maintenance, and operation of NTT DOCOMO Business’s security services. In recent years, he has focused on phishing countermeasures, giving talks as a “phishing hunter” at major security conferences such as JSAC 2024, the Information Security Workshop in Echigo-Yuzawa, and the JPAAWG 7th General Meeting, where he promotes awareness and best practices in the field. He holds an advanced certification (Security Principal) under the NTT Group’s internal security qualification program and is also a CISSP holder.

At NTT DOCOMO Business, he is mainly engaged in the development of threat intelligence research and analysis systems. His recent area of interest is OSINT (Open Source Intelligence). He affectionately refers to his home server as a bonsai, nurturing it slowly and carefully over time.

He is a senior engineer at MBSD. His main work is in the planning and development of security products and R&D related to AI security.

I work at a certain technology trading company, conducting research on attack techniques and defense technologies, as well as providing unique services. I am a organizer of HAMASEC and MINI Hardening

He is an engineer and pentester in MBSD. 　　 He has over 15 years of work experience, and he uses his know-how to give talks at conferences such as Bsides Tokyo (2018, 2019), JAWS Days 2019, and many others.

Hi, I'm Sasuke, a 15 y/o (in 2024) casual web app dev AKA Untrioctium. My nickname comes from the hypothetical 138th element, which I think is pretty cool. I'm a student at Tsukukoma Senior High, and I speak some English. Hope you enjoy MPIT!

Nice to meet you. I am a first-year student at Keio University, Faculty of Science and Technology. My hobbies include web-related and creative coding. I don't have much experience participating in events like this, but I will do my best to present our work.

I started as a programmer focused on natural language processing and entered the security industry about two years ago. Currently, I am working as the lead in R&D and expanded product development for tools to implement API Security.

Kamel Ghali is an automotive cybersecurity veteran of over 6 years. He is the Director of Event Outreach for the DEFCON Car Hacking Village and head of the Tokyo branch of the Automotive Security Research Group. He has extensive experience working as a vehicle penetration tester, car hacking trainer, and consultant, with experience working all over the world. He speaks English, Arabic, Japanese, and loves to cook.

I work as a management of security team and Wallet team at a cryptoasset exchange, where I am responsible for developing and implementing security plans, monitoring, incident response, risk assessment, and activities to raise security awareness.

I enjoy cybersecurity.

I primarily deal with the sales of security products. Recently, I've taken a particular interest in social engineering.

I love infrastructure. I live in VRChat. I work on infrastructure development using Kubernetes and Terraform, and I'm also involved in SRE (Site Reliability Engineering).

I like both making and breaking stuff. I do random stuff; from binary analysis to forensics and recon.

We started researching security issues in online games last year to build the community with Japanese game companies. At NCFTA Disruption 23, we shared our findings on Minecraft MOD and received some positive feedback.

We started researching security issues in online games last year to build the community with Japanese game companies. At NCFTA Disruption 23, we shared our findings on Minecraft MOD and received some positive feedback.

I spend days of thinking of that achieving cybersecurity is really difficult. I think it would be impossible to do it alone, so I would be happy if the defenders could cooperate with trusted friends. I'm not growing well like a sleeping egg. First spep:　Wake up and start working!