Mixing up employee documentation. Every employee should have their own folder with subfolders (either physically or digitally) for each type of file, such as personnel, payroll, benefits, and medical. 2. Purging too early. While it may be tempting to clean house, do not shred any information after employees quit. 3. Giving access to too many people. Letting a supervisor see another employee’s information can be a violation of privacy and could result in legal action. Secure confidential documents and separate performance evaluations or other information managers may need to see separately.