Data retention summary
This summary shows the default categories and purposes for retaining user data. Certain areas may have more specific categories and purposes than those listed here.
Site
Category
- 认证信息
密码哈希、OAuth ID、会话/令牌
Purpose
- 安全审计与防滥用
为保障系统安全与防止滥用而处理的技术日志（如登录/访问日志、IP、User-Agent、错误与审计日志、会话与令牌使用记录等）。
- Retention period
- 6 months
| Lawful bases | |
|---|---|
| Legitimate interests (GDPR Art. 6.1(f)) | Processing is necessary for the purposes of the legitimate interests pursued by the controller or by a third party, except where such interests are overridden by the interests or fundamental rights and freedoms of the data subject which require protection of personal data, in particular where the data subject is a child |
Users
Category
- 联系方式
Purpose
- 账户与服务提供
为提供账号注册、登录与站点功能之必要处理（例如：用户名、邮箱、密码哈希、个人偏好与会话信息），用于身份识别与服务交付。此用途不涉及敏感个人数据。
- Retention period
- 1 years
| Lawful bases | |
|---|---|
| Contract (GDPR Art. 6.1(b)) | Processing is necessary for the performance of a contract to which the data subject is party or in order to take steps at the request of the data subject prior to entering into a contract |
Course categories
Category
- 学习数据
Purpose
- 教学与评估
为开展课程教学、作业与测验、提交与批改、成绩评定与申诉所需的数据处理（例如：作业提交、测验记录、成绩与评语、讨论互动等）。
- Retention period
- 5 years
| Lawful bases | |
|---|---|
| Contract (GDPR Art. 6.1(b)) | Processing is necessary for the performance of a contract to which the data subject is party or in order to take steps at the request of the data subject prior to entering into a contract |
Courses
Category
- 学习数据
Purpose
- 教学与评估
为开展课程教学、作业与测验、提交与批改、成绩评定与申诉所需的数据处理（例如：作业提交、测验记录、成绩与评语、讨论互动等）。
- Retention period
- 5 years
| Lawful bases | |
|---|---|
| Contract (GDPR Art. 6.1(b)) | Processing is necessary for the performance of a contract to which the data subject is party or in order to take steps at the request of the data subject prior to entering into a contract |
Activity modules
Purpose
- Retention period
- No retention period was defined
Blocks
Purpose
- Retention period
- No retention period was defined