Advanced Persistent Threats and Blockchain Technology: Exploring the Potential of Decentralized Defense Mechanisms

Advanced persistent threats (APTs) make up a significant cybersecurity challenge due to their ability to be stealthy and sophisticated and contain a long attack duration. These defenses typically do not work, especially traditional ones. This article explores the possible use of blockchain technology as a decentralized answer to combat APTs. Novel defense mechanisms are proposed by leveraging blockchain’s core features of decentralization, immutability, and transparency, including systems for decentralized threat intelligence sharing, secure access control, and automated response via smart contracts. It compares existing blockchain-based frameworks and shows their strengths, scalability challenges, and performance trade-offs. A conceptual decentralized defense framework is presented based on real-time detection and mitigation strategies. Finally, recommendations for integrating blockchain with existing security infrastructures and future research directions in decentralized cybersecurity are made.