The access denied error 16 from Imperva means that the security service blocked a request based on the Block User WAF settings. This error is displayed when the session is cookieless and the visitor was blocked.
To investigate the incident, you can:
For more details on Imperva error codes, you can check the Cloud WAF Error Pages and Codes.
To investigate the incident, you can:
- Go to the Security Events page in the Cloud Security Console
- Filter the events for details in the error message, such as IP or Incident ID
For more details on Imperva error codes, you can check the Cloud WAF Error Pages and Codes.