To view the status of the signature database and Web Application Firewall service license, and synchronize the signature database
Navigate to Web Application Firewall > Status. The WAF Status section displays the following information:
If updates are available for the signature database, Apply is displayed. Click Apply to download the updates.
You can select an option to update and apply new signatures automatically on the Web Application Firewall > Settings page. If this automatic update option is enabled, Apply disappears from the Web Application Firewall > Status screen as soon as the new signatures are automatically applied.