I am interested in understanding how Alibaba Cloud ensures the security of AI applications and data. Specifically, I would like to know about the measures and technologies Alibaba Cloud employs to protect data at rest and in transit, manage access control, and comply with security standards and regulations. Additionally, I'm curious about the AI security services offered by Alibaba Cloud, such as protection against cyber threats and continuous monitoring. Understanding these security aspects will help me evaluate Alibaba Cloud's suitability for hosting and managing sensitive AI applications and data.