In the context of REST API authentication, the process typically involves the REST client first obtaining an access token by providing the necessary credentials, which usually include a password. Once the REST client has the access token, it uses this token to request access to a specific resource on the server. The REST API then validates the provided access token to ensure it is correct and has not expired. If the token is valid, the REST API grants the client access to the requested resource. This method ensures that only authenticated clients can access resources, providing a layer of security for the API.

When there is a report of a possible malicious insider incident, the first action should be to inform the computer security incident response team (CSIRT) to investigate further. The CSIRT has the expertise and authority to conduct a thorough investigation, analyze the precursors and indicators, and determine whether an incident has occurred3.