This detection rule identifies failed authentication attempts originating from countries where an organization does not operate. It leverages Azure sign-in logs as the data source, focusing on entries that indicate a failed authentication status ('Failure'). The rule specifies a selection criteria that confirms the authentication attempt was unsuccessful while simultaneously ensuring that the location of the attempt does not match any of the pre-defined countries the organization operates in. If an authentication attempt has a location that matches a defined operating country, it is disregarded in the detection rule. The key intent behind this rule is to unveil suspicious activities that may indicate potential unauthorized access attempts from foreign locations. The 'use OR for multiple' comment in the detection criteria implies that the list of operational countries can be flexible, adapting to an organization's geographic footprint. A false positive alert may occur if the attempts were approved by an administrator, emphasizing the need for IT staff to validate these occurrences.