Sensitive employee information included in internal emails by the HR department usually includes, but is not limited to, the following categories: 1. Basic personal information • Name, gender, date of birth, address, contact information and other identity and contact information • ID number, passport number or other legal document number 2. Employment and contract information • Employee's position, department, employee number, date of employment and work status • Contract type, contract term and content of relevant employment agreement 3. Compensation and financial information • Salary structure, basic salary, bonus, commission, benefits and subsidy details • Bank account number, tax information and financial data directly related to salary payment 4. Performance appraisal and reward and punishment records • Appraisal results, performance evaluation, promotion, transfer records • Disciplinary sanctions, warnings, appeals and other internal management records 5. Health and personal status information • Health examination results, sick leave, personal leave and other attendance and medical records • Special circumstances, such as pregnancy, injury, work-related injuries and other information that require special management 6. Internal investigation or personnel adjustment related information • Internal investigation, complaint handling, conflict mediation and other content involving employees • Detailed description of resignation, transfer, dismissal and succession matters. It should be noted that since the above information involves employees' privacy and sensitive personal data, companies should strictly abide by relevant laws and regulations and internal regulations when transmitting and storing these emails, and take appropriate confidentiality and encryption measures to ensure the security and legality of information handling.