Cloud computing applications have the following problems: Privacy leakage: When using cloud computing, organizations need to store data on servers that are shared by other users, which may lead to the risk of privacy leakage. Security Vulnerabilities: There may be security vulnerabilities in cloud computing platforms such as improper configuration, unauthenticated access, etc. These vulnerabilities may be exploited by hackers to attack enterprise systems and data. Data Integrity: In a cloud computing environment, data may be subject to unauthorized tampering or destruction, which can affect normal business operations. Service Availability: If the cloud computing service provider fails or maintenance occurs, it will result in the enterprise not being able to access the data, files or other business information. In order to protect the security of enterprises in the process of cloud computing applications, the following security measures are generally adopted: Encryption: Encryption technology is used to protect data and ensure that data is not stolen, tampered with or destroyed during transmission and storage. Authentication and authorization: Authentication and permission control techniques are used to authenticate and authorize users, thus ensuring that only legitimate users can access the system. Security Audit: Monitor and record the operation process in the system to discover abnormal behavior and security loopholes in time. Backup and Recovery: Regularly back up data and establish corresponding recovery mechanisms to prevent data loss or damage. Security Training: Security training for enterprise employees to improve their security awareness and security literacy, thus reducing unnecessary man-made security loopholes.