Confidentiality refers to the ethical principle of keeping information private and secure. It is essential in various fields, such as healthcare, law, and business, where sensitive data about individuals or organizations must be protected. Maintaining confidentiality helps build trust between parties and ensures that personal or proprietary information is not disclosed without permission. In practice, confidentiality involves implementing measures like secure storage, restricted access, and clear policies on information sharing. For example, healthcare providers must keep patient records confidential to comply with laws like HIPAA. Violating confidentiality can lead to legal consequences and damage relationships, highlighting its importance in professional settings.