PubNub has introduced a new feature called Files to enhance its chat applications, allowing users to share images, videos, and files seamlessly within the chat interface. This functionality involves uploading files to an external bucket, with URLs being passed to the chat application, and allows for user-defined text captions. Files feature includes benefits such as local file data saving, filename specification, and encryption before uploading, with a default upload limit of 5MB that can be increased upon request. Aiming to meet user expectations for fully-featured chat services, PubNub emphasizes the importance of file sharing as a critical component of user engagement. To address potential content moderation issues, the platform allows integration with third-party image moderation services, ensuring clean and safe content sharing. The Files feature is designed to scale with user needs, ensuring security and compliance, including HIPAA, while being adaptable for easy integration into existing applications.