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Security Priorities in DeFi by Vitalik Buterin

Reading time: 2 min
February 26, 2026
Author: Team Resonance
Security Priorities in DeFi by Vitalik Buterin

Vitalik Buterin emphasizes security and decentralization in DeFi, highlighting vulnerabilities in oracles.

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Co-founder Ethereum Vitalik Buterin emphasized the need to focus on security and decentralization when developing oracles, warning of hidden vulnerabilities in key components of the modern decentralized finance (DeFi) ecosystem.

The Role of DeFi in Ethereum’s Strategy

Decentralized finance holds a central place on the Ethereum platform, expressing its core values of financial freedom and asset control. Buterin emphasizes that while finance is not the only task of Ethereum, it represents an important component that defines its essence and value proposition.

Oracles and Their Role in DeFi

Oracles act as a bridge between the blockchain and the real world, providing the data necessary for smart contracts to function properly. In his address, Buterin highlights a high-risk area associated with the security and decentralization of oracles. Vulnerabilities in this area can threaten the stability of components like lending, stablecoins, and derivative instruments.

Innovation and Security

Buterin proposes following two key directions. The first is the renewal of an innovative approach in developing new financial instruments. Teams should strive for radical rethinking, rather than just improving current products. The second is focusing on protocols that pass the “resilience test,” remaining functional without the participation of development teams.

Ethereum Vision and Promoting DeFi

The Ethereum Foundation plans to support the development of a leaner version of DeFi, focused on minimizing centralized points of failure and third parties, emphasizing user independence. This implies the creation of solutions that enhance resilience and security.

Conclusion

Vitalik Buterin’s approach envisages significant changes in Ethereum's strategy concerning increased security and innovative approaches in DeFi. Considering current challenges such as oracle decentralization, the platform aims to become a benchmark for asset protection and risk management. Strengths include enhanced control, but risks remain associated with the introduction of new technologies and finding a balance between innovation and resilience.

  • Support for decentralization
  • Vulnerability due to dependencies on oracles
  • Impact on ecosystem resilience
  • Opportunities with new financial instruments

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