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Speaker at Bsides Kochi, BIOS meetup, SlashN and various other conferences.

Hi, My name is Aftab Sama! 👋I'm a cybersecurity researcher. I graduated from Rashtriya Raksha University with a degree in Computer Science and Engineering with specialization in Cyber Security. My interest in Capture the Flag (CTF) competitions helped me secure my first internship at KPMG India, as I was among the top performers in a national CTF competition organized by the KPMG Cyber Security Team. I secured an on-campus internship at Quick Heal, where I had the opportunity to shadow various malware cases and learn about the investigation process. I validated Indicators of Compromise (IoC) for physical samples from CertIN and OTX, and I utilized my Python skills to automate some daily tasks. I also ranked among the top 100 in TCS HackQuest Season 7 Capture the Flag (CTF) competition, which led to an employment opportunity with TCS, where I am currently working as Penetration Tester.My passion for offensive security and penetration testing led me to obtain certifications such as CAPenX, BSCP, CNPen, CAPen, and CEH Practical, among others. I plan to enroll in further offensive security courses in the future.In my free time, I actively participate on HackTheBox and CTFTime and have taken part in several prestigious CTF competitions, winning multiple prizes. Besides my interest in security, I enjoy reading about stoicism and philosophy.You can read my blogs and writeups at https://aftabsama.com.

Ailin Castellucci’s speaking experience spans key cybersecurity communities and public forums across Latin America, where she delivers both technical workshops and high-level talks focused on practical, real-world security.She has been part of conference lineups such as NotPinkCon, where she presented “Cyber-Operation,” exploring cybersecurity and cyber conflict concepts in an accessible, audience-friendly way.At Congreso AGETIC 2023 (Bolivia), she led a hands-on workshop, “Threat Modeling in a Nutshell,” designed to help teams apply threat modeling methodologies in practice—covering strengths, real-life use, and the human challenges organizations face when implementing these practices. In the same event, she was also listed as a keynote speaker with “Avengers, assemble! – Seguridad colaborativa,” reinforcing her emphasis on collaborative security approaches.She has also spoken at the “Cibercrisis” conference series by Sombreros Blancos, where she presented a talk titled “Roses are red, violets are blue… there’s a spy in your net and she’s behind you!”, bringing an engaging, story-driven angle to security awareness and adversarial thinking.Beyond large events, Ailin frequently speaks in community and online formats—such as Discord sessions—on topics like “Seguridad Colaborativa,” aiming to bridge the gap between security best practices and what teams can realistically implement.Overall, her speaking style blends practitioner experience (offensive security, bug bounty, and security teams) with clear frameworks and actionable guidance, making her talks useful for both newcomers and experienced professionals.

Alon Friedman is a Principal Security Architect at Microsoft 365 Defender, with extensive experience in application security and penetration testing. He focuses on defining application security standards and researching threat landscapes. His background includes leading secure software development at Salesforce and managing application vulnerabilities at PayPal. Alon is a recognized researcher, credited with CVE-2014-4246 and the creation of the SCIP OWASP ZAP extension

As a seasoned speaker and trainer, Anant has shared his expertise at various prestigious platforms including Black Hat (USA/ASIA/EU), Defcon, Nullcon, c0c0n, and Rootconf. His extensive involvement in these conferences extends to serving as a CFP reviewer for Blackhat EU, nullcon, Rootconf by Hasgeek, and multiple villages at Defcon (Recon, Adversary and Cloud), showcasing his dedication to nurturing and elevating the discourse within the field.

Andreas Wiegenstein is engaged in SAP cyber security since 2003. He discovered quite a number of zero-day vulnerabilities in SAP software and supported development of a market leading static code analysis tool for the business programming language ABAP. He has spoken at more than 70 conferences world-wide about SAP security, including Black Hat, DeepSec, Hack In The Box, IT Defense, RSA, SAP TechEd and Troopers (alphabetical order). His current research is focused on SAP malware and supply chain attacks.

I’m a results-driven Principal SecOps Engineer with over 15 years of proven expertise spanning across multiple organisations in various service sectors in architecting and delivering world-class security programs for global software organizations. I’ve spearheaded transformational automation initiatives, reducing report-generation times by over 95% and built unified multi-cloud compliance frameworks that consistently pass rigorous audits and compliances. I've created AI-powered attack surface platform earned international hackathon recognition, and I’ve presented SecOps deep dives at VULNCON, top engineering colleges, and industry forums.As Cloud Security Lead and Principal Engineer at Perforce, I’ve led high-impact teams to operationalize continuous monitoring, vulnerability management, and incident response at scale.A CISSP-certified mentor and community advocate, I actively contribute to open-source security projects and share expertise through workshops, and local meetups empowering the next generation of security professionals.

A motivated individual always up for breaking stuff ! Currently working as a Red Team Security Consultant with a focus on penetration testing and security assessments for Web, Mobile, API, OT, and Network environments. I have experience leading 150+ security assessments, working with vendors from various industries such as government agencies, private organizations, healthcare, crypto, finance, retail, education, and many more to identify vulnerabilities and improve their overall security and help organizations strengthen their defenses against potential threats.In addition to my professional work, I’m an active bug bounty hunter on platforms like Bugcrowd and Synack. I’ve earned recognition in 70+ Hall of Fame lists, including those of Microsoft, Apple, Google, Zoom, Okta, Canva, Indeed, Atlassian, Dell, and many more. Helping organizations strengthen their security by identifying vulnerabilities and contributing to their overall cybersecurity efforts.Constantly learning, always hacking, I thrive on offensive security challenges and take pride in discovering the unknown before attackers do.

A motivated individual always up for breaking stuff ! Currently working as a Red Team Security Consultant with a focus on penetration testing and security assessments for Web, Mobile, API, OT, and Network environments. I have experience leading 200+ security assessments, working with vendors from various industries such as government agencies, private organizations, healthcare, crypto, finance, retail, education, and many more to identify vulnerabilities and improve their overall security and help organizations strengthen their defenses against potential threats.In addition to my professional work, I’m an active bug bounty hunter on platforms like Bugcrowd and Synack. I’ve earned recognition in 70+ Hall of Fame lists, including those of Microsoft, Apple, Google, Zoom, Okta, Canva, Indeed, Atlassian, Dell, and many more. Helping organizations strengthen their security by identifying vulnerabilities and contributing to their overall cybersecurity efforts.Constantly learning, always hacking, I thrive on offensive security challenges and take pride in discovering the unknown before attackers do.

I'm an active member and contributor at various security and developer communities including null open security community and FOSS United.I delivered talks/training at various conferences such as HITB, Sincon, Nullcon, c0c0n, Defcon: Recon Village, various Bsides, Bugcrowd LevelUp, PyCon India etc.References to my talks/trainings:https://www.disruptivelabs.in/talks/https://speakerdeck.com/0xbharathhttps://www.disruptivelabs.in/trainings/

Bocheng Xiang (@crispr_x) is an offensive security researcher and PhD candidate at Fudan University. His work focuses on uncovering high-impact Windows vulnerabilities and exploitation primitives rooted in file system semantics and OS design flaws. He is an MSRC MVR (2024/2025) and ranked Top 20 on the MSRC 2024 Q3 Windows Leaderboard.He has published at USENIX Security and NDSS, with accepted talks at PoC 2025 and Black Hat USA/Europe.

Boik Su is a security research manager at CyCraft Technology and is currently focused on Cloud Security, Web Security, and Blockchain Security. He takes an active role in the cybersecurity community and has delivered speeches at multiple seminars across the globe, including HITCON, HITB, FIRSTCTI, VB, and HackerOne. He still participates in CTF competitions, including SECCON CTF in Japan and HITCON CTF in Taiwan, and has submitted multiple reports to bug bounty programs and open-source projects.

1. Guest Speaker at BINUS University (Indonesia) | 2024Topic: Cybersecurity Practices & The "Open Possible" SpiritDescription: Delivered a keynote during an overseas technical exchange, sharing insights on Taiwan Mobile's security strategies and fostering transnational internship opportunities.2. Internal Technical Seminar at Taiwan MobileTopic: Case Study: Exploiting Google Web Designer (Zip Slip Vulnerability)Description: A deep-dive presentation analyzing the root cause of a $7,500 Google VRP finding. Covered the discovery process, exploitation of the path traversal defect, and the final reporting methodology.3. Advanced Security Training Series (Internal)Topic: Offensive Security & Reverse EngineeringDescription: Conducted multiple technical sessions for internal engineering teams. Topics included:DLL Hijacking & Patch Diffing: Analyzing attack vectors in Windows environments.Reverse Engineering: Practical training using IDA Pro and Linux CTF challenges.Web Exploitation: Methodologies for identifying XSS and SQL Injection vulnerabilities

EXPERTISE:- Experienced Cyber Security with a demonstrated history of working in the several industry. Skilled in Penetration testing, XDR, EDR, DFIR, Threat Hunting, and OSINT.- Advanced Ethical Hacking:Proficient in various hacking methodologies, including but not limited to network penetration testing, (web, API, Infra, mobile) application testing, wireless network exploitation, and social engineering.- Deep Knowledge of Security Frameworks: Expertise in industry- standard security frameworks such as OWASP, NIST, and PTES, with the ability to apply their guidelines effectively

Catalyst 💜 | Architect of Calm in Chaos | Secure-By-Design Advocate | Cloud Security, Responsible AI & Digital Trust | Researcher | Community Builder | #DTalk

As an ethical hacker, I equip enterprises with the advice and solutions to improve their digital security posture and their overall business growth. Throughout my career as an ethical hacker I’ve worked across several industries including:💥 Government💥 Advertising💥 Retail💥 Financial Services💥 Blockchain💥 Technology💥 Publishing💥 Non-Profit💥 And more!This has provided me the opportunities to gain a breadth of knowledge on all things security testing.

Donavan is a Physics graduate turned into cybersecurity consultant with >8 years of experience in a variety of cybersecurity domains (e.g. offensive security, threat modeling, maturity assessments, security architecture) and business domains (cyber GRC).He blends his understanding of clients across both public and private sectors to identify key cybersecurity concerns and solutions to enable companies' cybersecurity compliance, confidence and cost-effectiveness (3 Cs).He has numerous contributions to the cybersecurity community since 2018. He has written hacking challenges, spoken at numerous conferences and events (SECCON JP, Threat Modeling Connect Japan, GCC 2025 @ Taiwan, Seasides 2025 @ Goa, SINCCON @ Singapore, DefCamp @ Romania) on topics ranging from threat modeling to application security. He has conducted career talks to encourage younger students from middle school to university levels to enter the cybersecurity industry. He also sits on the advisory board of VULNCON (since 2024), BSides Mumbai and Vazig, and has authored numerous articles on ISACA on topics ranging from post-quantum cryptography, to the relations between social sciences and cybersecurity as well as threat modelling. His views on cybersecurity has also been quoted by "The Pentester Blueprint" written by Phillip L. Wylie and Kim Crawley, and Offensive Security. He also contributes to the ISC2's Unified Body of Knowledge (UBK) through the Technical Advisory Panel Workshop.In Thales, he has also led a team to create a made in Singapore cybersecurity gamification experience, "Defend the Breach" (DTB), in three months, where players role-play CISO roles to make difficult cybersecurity decisions, taking into account both cyber and non-cyber factors such as the overall health of the business, manpower and operational requirements.Donavan also possesses certifications ranging from Offsec certifications (OSCE3, OSCP), ISC2 (CISSP), ISACA (CRISC) and is more than halfway through his Masters in Cybersecurity at Georgia Tech (OMSCY).On the mentorship front, he has developed and helped two mentees secure jobs, and mentors a dozen mentees in various capacities (individuals, cyber start-up founders)Outside cybersecurity, Donavan has also represented Singapore in international forums such as the ASEAN-India Youth Summit as a delegate.Find out more about me at https://donavan.sg and my cybersecurity writing at https://donavan.sg/blog.

I spoke at about a dozen conferences so far, mostly always about Software Supply Chain Security / Application Security. I am a regular guest on several podcasts on the same topic as well. I spoke in front of small (a few dozen) and large audiences (several hundreds) both locally and internationally (North America and Western Europe). I spoke at BlackHat SecTor, OWASP Global AppSec, NorthSec, Linux Foundation's OpenSSF event, Munich Cyber TTP, etc.

IdentityShield Summit 2026 (Pune): Co-presented "The Automata Architect: Scaling Bug Bounty Success to Enterprise Level Security."

As a seasoned technologist, life-long hacker, and world-renowned security professional, I excel at tackling complex problems from unconventional angles to uncover innovative solutions. With expertise in managing multicultural environments, I bridge the gap between commercial and technical sides of businesses, aligning international teams to achieve common goals. My entrepreneurial spirit and technical acumen enable me to navigate crisis situations, chaotic business environments, and strategic changes with ease.With a deep understanding of IP networking, telecom, internet communications, security, and cloud computing, I stay ahead of the curve by exploring new technologies before they hit the market. I analyze their strategic implications, disruptive effects, and emerging opportunities, providing valuable insights to businesses.My extensive experience spans designing complex computing environments, evaluating security issues in widely used systems, including election equipment, and authoring academic studies on election security. As a co-founder of the first pan-European internet service provider EUNet, I have a proven track record of developing secure communication protocols and technologies.Since 2005, I have advised law and policy makers, national and local governments, on cybersecurity and critical infrastructure in the United States, ASEAN, and elsewhere. I work with multiple companies on security technologies, identity management, cryptography, and digital biotech applications. My expertise is also sought after for security trainings and assessments of critical infrastructure worldwide.As a co-founder and co-organizer of DEF CON Voting Village, I have played a pivotal role in shaping the global security research and hacker community. My work has been featured in two Emmy-nominated HBO documentary films, "Hacking Democracy" (2006) and "Kill Chain: The Cyber War on America's Elections" (2020), showcasing my successful proof-of-concept mock election hack and follow-up analysis on election security.

I am a versatile Application Security Engineer dedicated to enhancing the security posture of both web and mobile applications. My primary focus is on implementing robust security measures through thorough assessments, comprehensive source code reviews, and the integration of security practices within the DevSecOps framework. I specialise in embedding security into Continuous Integration and Continuous Deployment (CI/CD) pipelines through various methods, including Static Application Security Testing (SAST), Dynamic Application Security Testing (DAST), Software Composition Analysis (SCA), and Mobile Application Security Testing (MAST). By driving effective threat modelling sessions, I identify and mitigate potential vulnerabilities early in the development lifecycle, ensuring that security is a fundamental component rather than an afterthought.Additionally, I work on building secure-by-default pipelines and guardrails tailored to the unique requirements of each project, fostering a culture of security awareness among development teams. My goal is to empower organisations to deliver secure applications without compromising on agility or performance.

Hiroki MATSUKUMA (@hhc0null) is a middle manager at Cyber Defense Institute, Inc., where he leads the reverse engineering section. His main areas of interest include vulnerability research and exploit development.

Instructor-led training and lectures in cybersecurity, bug bounty hunting, and blockchain development through Flowdiary. Regularly deliver technical walkthroughs, live exploitation demos, and vulnerability analysis sessions for learners and developers. Experience presenting complex security concepts clearly to both technical and non-technical audiences.

Frequent speaker on secure software development, AI security, and innovative security practices at leading industry conferences, demonstrating thought leadership and innovation aligned with industry-leading organizations. Below are some of the recent topics I have shared:• “The Code You Didn’t Write: Invisible Threats in Modern Software Development”• "Security From the Start - The Financial and Operational Gains of Secure Software Development"• "Navigating the AI Landscape - Balancing Benefits and Risks of AI for Business Processes"• “Cybersecurity Controls That Fail: Lessons from History”• "Cyber Adversary Modeling - Bridging Gaps in Imperfect Data"