The blog post discusses the integration of Access Manager (AM) into the PubNub AngularJS SDK, allowing for flexible and secure access control in real-time applications. This addition enables developers to create private, read-only, or write-only channels by using a serverless API, thereby facilitating scenarios like real-time price updates or request-response interactions. The access control mechanism relies on the use of auth_keys, which act as shared secrets to manage user permissions through Grant and Audit functions. The post emphasizes the importance of secure distribution of auth_keys and explains how to set different levels of access, including the use of time-to-live (TTL) settings for defining permission durations. Additionally, the blog highlights ongoing updates to the library, such as presence API support and potential new features like PubNub-enabled Angular directives, encouraging developers to explore these capabilities and contribute ideas for future enhancements.