Designing Post-Quantum Secure Blockchain Infrastructure for Business Intelligence Systems: Migration Strategies and Cost Optimization

The growing reliance on cloud-based business intelligence systems has increased the demand for secure communication and verifiable data integrity. However, the emergence of quantum computing poses a significant threat to current cryptographic protocols, as widely adopted encryption schemes may become vulnerable to quantum-enabled attacks. In this paper, the vulnerabilities introduced by quantum advancements in contemporary business intelligence systems are examined. Recent approaches in the literature are evaluated, and a hybrid security model is proposed that integrates quantum-resistant cryptographic components—such as post-quantum digital signatures and Post-Quantum Delegated Proof of Ledger (PQ-DPoL) consensus. A security model based on permissioned blockchain architecture is presented as a practical and scalable solution for long-term resilience, offering enhanced protection in anticipation of future quantum capabilities.