Zellic is a blockchain security firm solving the most critical software assurance problems. Our audits prevent business-ending hacks. We have identified and eliminated critical vulnerabilities in top projects, including Sui and Aptos Core, Solana SPL, and LayerZero that endangered billions of dollars. In 2022, 55% of Zellic audits uncovered serious issues. Our mission is simple: catch deadly bugs, save users’ money. Our expertise in both Web3 and Web2 allows us to tackle even the most challenging targets. We are leading experts in cryptography, web security, and reverse engineering. We advise clients in the EVM, Move, Cosmos, and Solana ecosystems, as well as wallets, major cross-chain bridges and L1s. Before Zellic, we founded the №1 CTF (competitive hacking) team in the world.
Zellic
Zellic is a blockchain security firm solving the most critical software assurance problems. Our audits prevent business-ending hacks. We have identified and eliminated critical vulnerabilities in top projects, including Sui and Aptos Core, Solana SPL, and LayerZero that endangered billions of dollars. In 2022, 55% of Zellic audits uncovered serious issues. Our mission is simple: catch deadly bugs, save users’ money.

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