A data breach notification is a legal requirement for organizations to inform affected individuals and, in some cases, regulatory authorities, when personal data has been compromised due to unauthorized access, disclosure, or loss. The purpose is to ensure transparency, allow individuals to take protective actions, and promote accountability among organizations handling sensitive information. Notification laws vary by jurisdiction, but typically mandate prompt disclosure, details about the breach, the type of data involved, and recommended steps for protection. Failing to comply with notification requirements can result in legal penalties, reputational damage, and loss of customer trust. Data breach notifications are a critical part of modern privacy and cybersecurity regulations.