Traditional centralized access control methods create single points of failure and administrative complexity when managing multi-user permissions. The study introduces CP-ABE frameworks leveraging attribute trees and bilinear group cryptography for fine-grained access control. He is also Google Ads certified, reflecting an ability to connect data analytics with practical business applications. In addition to journal publications, Yu Pan has presented research at international technical conferences, including work on recommendation systems, cloud data access control, and knowledge-graph-based financial risk assessment. A fintech application presented at the 2025 Knowledge Graph Conference further illustrates how knowledge graphs can support AI/ML-driven approaches to financial security.