lonelySloth
hunting bugs since 2019. 3M+ in bounties. zk proofs/circuits, go, rust, c++, solidity, etc
lsr
Biography
After decades of coding experience, LonelySloth started researching crypto technology in 2017, at first with a few smaller contributions to Bitcoin Core tests and documentation. He later progressed to security research and reporting bugs for bug bounties and conducting audits of code bases.
In 2019 he gained notoriety after obtaining a $50K bounty for a MakerDAO vulnerability: one of the highest bounties ever paid at that point.
In 2021 he was one of the earliest adopters of Immunefi, having since grossed more than $3M in bounties in that platform.
Since 2024, LonelySloth has been a Lead Security Researcher at SpearBit, participating in multiple audits of complex code bases.
His research focus is on complex L1/L2 protocols, including Go, Rust, C++, and Solidity code bases, as well as ZK-proof-based systems.