In the internal emails of the company's HR department, common sensitive employee information usually involves multiple aspects and needs to be kept strictly confidential to prevent privacy leakage or legal risks. The following are the main categories and specific content： ### 1. **Personally identifiable information** -ID number, passport information, social security number, etc. -Home address, personal contact information (such as personal telephone number, email address). -Emergency contact information. ### 2. **Salary and benefits data** -Salary structure, bonus distribution, equity distribution. -Details of social security payment, provident fund, and commercial insurance details. -Travel reimbursement records or tax information. ### 3. **Performance and career development** -Performance appraisal results, promotion evaluation, and salary adjustment records. -Training plans, leadership development projects or successor arrangements. ### 4. **Health and medical privacy** -Medical certificates for sick leave, medical examination reports, disability or health adjustment needs. -Mental health support records (such as psychological counseling services). ### 5. **Discipline and compliance matters** -Disciplinary investigation records, warning letters, and reasons for dismissal. -Progress in handling complaints of sexual harassment or discrimination. ### 6. **Employment contract and resignation information** -Labor contract terms and competition restriction agreements. -The content of the resignation negotiation, the details of the compensation, and the explanation of the reasons for the resignation. ### 7. **Background check information** -Academic qualification verification, criminal record, evaluation by former employer. -Credit check results (if applicable). ### 8. **Family and personal status** -Marital status, child information, maternity/paternity leave application. -Family changes (such as funeral leave, financial hardship assistance). ### 9. **Work arrangements and organizational changes** -Undisclosed job transfer, layoff plan or team reorganization. -Change of participation authority or authority for sensitive projects. ### 10. **System security information** -Configuration of employee account password and system access rights. -Internal report of data breach incident. ###**Risk and compliance requirements** -**Legal compliance**: It is necessary to comply with data protection regulations such as GDPR and HIPAA to avoid cross-border transmission of sensitive data. -**Security measures**: Email encryption, permission grading, regular audits, and employee confidentiality training. -**Consequences of leakage**: It may lead to legal proceedings, loss of reputation, crisis of employee trust or financial risks. HR departments should adopt strict data management policies and security technologies to ensure that such information is only shared to the extent necessary, and use the principle of minimization to process sensitive data.