Building a successful product requires careful consideration of security, scalability, and reliability, as failing to address these aspects can lead to vulnerabilities and wasted resources. Traditional approaches that involve developing and managing all aspects of a product in-house can expose businesses to risks, especially as the product scales. A serverless approach, which leverages cloud providers for scaling and infrastructure management, offers advantages such as reduced costs, decreased time to market, and lower latency. PubNub provides a real-time messaging API that enhances product communication capabilities with quick message delivery and a global presence, supporting various applications from chat messaging to IoT device signaling. PubNub's Functions allow developers to execute custom code for message processing, offering features like translation, secure API calls, and data serving, with a wide variety of event handlers available in its Blocks Catalog.