Recently, a significant advancement in the realm of cloud secure storage has been achieved by Professor Zhang Xiaosong's team from the School of Cyberspace Security at the University of Electronic Science and Technology of China. Their research, titled "ShieldReduce: Fine-Grained Shielded Data Reduction," has been accepted for presentation at USENIX ATC'25, a leading international conference in computer systems. The paper introduces a novel bidirectional incremental compression technique designed to enhance deduplication efficiency while safeguarding data privacy. Experimental results demonstrate notable improvements in both throughput and compression efficacy.