Y2K Finance is an binary option protocol designed to create a marketplace for tail risks in DeFi, including pegged assets, directional markets, and real-world events that could pose a risk to the DeFi ecosystem. Market participants have the ability to robustly hedge or speculate on the risk of a particular market.

Zellic conducted a security assessment for Y2K Finance from August 16th to September 4th, 2023. During this engagement, Zellic reviewed Y2K Finance's code for security vulnerabilities, design issues, and general weaknesses in security posture.