We’re competitive hackers at the forefront of technology and security.


Stephen Tong


Stephen is the co-founder and CEO of Zellic. Stephen was inspired to start Zellic after hearing horror stories of terrible audits from founders and builders. Before Zellic, Stephen hacked iPhones as a vulnerability researcher at Dataflow Security and published peer-reviewed research on fuzzing. He also worked at the trading firm Two Sigma. Stephen is a founder of perfect blue, the world’s #1 CTF (competitive hacking) team in 2020, 2021, and 2023.1


Jasraj Bedi


Jazzy is the co-founder and CTO of Zellic. Jazzy was inspired to start Zellic after reading countless surface-level, useless audit reports as a DeFi enthusiast. He loves crypto, and is an active trader and user in many different protocols. Before Zellic, Jazzy worked at Google hacking Android. He is a bug bounty veteran, claiming bounties on countless Fortune 500 companies’ programs. Jazzy is a founder of perfect blue, the world’s #1 CTF (competitive hacking) team in 2020, 2021, and 2023.1

Capture the Flag (CTF) competitions bring the world’s best security researchers and white hat hackers together to solve the most complex problems in forensics, cryptography, web exploitation, reverse engineering, etc.

Our team

Our engineers bring a rich set of skills and backgrounds, including cryptography, web security, mobile security, low-level exploitation, and finance.

Zellic is full of world-renowned hackers and infosec leaders. Our mission is simple: Find all the bugs, save all the money. We hack hard targets, exploit tricky vulnerabilities, and produce excellent research.

Work at Zellic.

Safety standards are written in blood. Join us in building security solutions that advance the software industry and address the major deficiencies in software security.