Access Management as a Service (AMaaS) may provide an answer to the need for secure data access management. The new model is zero trust, where access by every device and user, whether inside or outside the firewall, requires verification. It is no longer sufficient to achieve trust simply through authentication ‘ ensuring people are who they say they are. We must also reduce risk through authorization ‘ ensuring only the right people have access to sensitive information, something that can change quickly and must be acted on immediately.
Source: https://www.helpnetsecurity.com/2021/06/16/secure-data-firewall/