# Protecting ShapeShift's OP Rewards Programs from Bots and Sybils #Web3 ShapeShift envisions a financial system without borders, built on decentralized protocols, and aims to offer a comprehensive alternative to centralized exchanges (CEXs). It is an open-source, multi-chain, self-custody crypto platform helping individuals achieve financial sovereignty. Currently, many CEXs provide some form of crypto Earn product that is protected from Sybil attacks through KYC requirements integrated into the platform. ShapeShift DAO has replicated this user experience in DeFi and selected Gitcoin Passport as its anti-sybil tool to implement the OP Rewards program. Gitcoin Passport effectively addresses these challenges through our advanced Sybil defense and Identity/Reputation system, utilizing Gitcoin Grants-grade technology to quantify unique transacting addresses accurately. The partnership helped disqualify over 5,700 Sybil attacker-associated addresses and more than 45K OP was saved from falling into the hands of Sybils. Access the complete article on the [Gitcoin Blog](https://www.gitcoin.co/blog/protecting-shapeshifts-op-rewards-program-a-case-study)