Confidential information is information that must not be shared with unauthorized parties because it concerns individuals, companies or internal matters. When writing an assignment as a student at a university college you might encounter data or information that requires special consideration and protection.
When you collect empirical data and use personal information in your project you must comply with the rules of GDPR. This means that you must ensure the proper handling of data, for example through anonymization or pseudonymization and by obtaining a consent agreement in the necessary cases. You should only upload your project to Student Projects if these rules are followed.
If you have any doubt about whether your project contains confidential information, or whether you have complied with the GDPR rules, you should always ask your teachers or supervisors and consult your institution’s guidelines.