Nightfall DLP is a cloud-based data loss prevention software that helps businesses classify and protect sensitive data using APIs. It offers features such as behavioral analytics, application security, sensitive data identification, incident management, false positives reduction, and policy management. Users can set up automated workflows for various actions and add data classification to existing workflows and applications using the system's REST API. The platform uses deep learning capabilities to receive structured results including API keys, credit card numbers, and more. Nightfall DLP's API facilitates integration with various third-party applications such as Slack, Google Drive, GitHub, and more.