Macworld Advanced Data Protection is a feature introduced in iOS 16.2 that brought end-to-end encryption to nearly all iCloud features, seriously raising the privacy and security of Apple’s cloud services. Apparently there’s a serious bug with it in iOS 17.6, because Apple has just released an iOS 17.6.1 update that specifically addresses a problem with it. The release notes simply state: This update includes important bug fixes and addresses an issue that prevents enabling or disabling Advanced Data Protection. There are no explanations about what other bugs may be fixed, but if Apple is call…