: You can view detailed reports of your storage usage by navigating to Settings > [Your Name] > iCloud on your Apple device. Official Transparency Reports
Apple publishes periodic Transparency Reports detailing government requests for customer data, including iCloud information. Alsabahi_Icloud
Could you please clarify if you are trying to , file a security complaint , or request a usage report for your personal account? iCloud - Official Apple Support : You can view detailed reports of your
: If you receive harassment, impersonation, or other types of abuse via an @icloud.com , @me.com , or @mac.com email address, forward the evidence to abuse@icloud.com . file a security complaint