How to Disable iCloud Web Access Using iPhone or iPad

iCloud is a popular cloud-based storage and synchronization service offered by Apple Inc. It allows users to store their data, including photos, videos, music, documents, and more, in the cloud and access it from any device, including iPhone, iPad, Mac, and Windows PC. While iCloud web access is a useful feature, some users may want to disable it for various reasons, such as privacy concerns or to prevent unauthorized access.