---
sourceDocument: Brazil Platform security
sourceDocumentLink: https://www.servicenow.com/docs/r/platform-security

 Release :

    - brazil

ft:locale :

    - en-US

ft:publication_title :

    - Brazil Platform security

ft:clusterId :

    - psec

bundleId :

    - psec

workflow :

    - Platform


---

# API authentication policies

# API authentication policies {#ariaid-title1}

Release version: Brazil  
Updated September 10, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Authentication policies evaluate authentication requests based on the specified policy
conditions and either allow or deny access depending on the matching criteria.  
You can use the built-in Global Blocking Policy or create an authentication policy according to your security requirements. Global Blocking Policy denies the authentication requests of users and APIs based on the specified filter criteria.  
Note:  
Do not use or modify Allow Access Policy and Deny Access Policy. These policies are meant only for user logins.