Database Security Service (DBSS) is developed based on Huawei's 30 years of experience in database security practices. It records user access to the database in real time, generates fine-grained audit reports, sends real-time alarms for risky operations and attacks. In addition, DBSS generates compliance reports that meet data security standards (such as Sarbanes-Oxley) to locate internal violations and improper operations, thus ensuring data asset security.