The term "personal data" in data privacy encompasses any information that relates to an identified or identifiable individual, including name, email address, phone number, and location data. It can also include sensitive information such as health records or financial details. Personal data is protected under various regulations, such as the GDPR (General Data Protection Regulation), which sets strict guidelines on the collection, processing, and storage of this information. Ensuring the security and privacy of personal data is essential for maintaining trust between individuals and organizations.