Most iphone users simply link their photos through an automatic icloud server without taking note of the risks associated with it. You can choose to disable photo stream, or go to icloud > storage & backup to disable the icloud backup option altogether About sensitive content warning on apple devices choose to receive warnings about photos or videos that might contain nudity before viewing them, as well as resources to help you make a safe choice
Man posing as Apple support rep scoured hundreds of iCloud accounts for nude images | TechSpot
Check for sensitive photos and videos sensitive content warning helps you avoid receiving unwanted nude photos or videos on your apple device
Photos or videos that might contain nudity are blurred.
Apple does still possess the master decryption keys for icloud backups. So they can in theory be compelled by law enforcement to decrypt backups and hand those backups over to law enforcement. While the celebrity icloud nude photo leak rattled the nude ecosystem almost a decade ago, the fear that something similar can arise hasn't dissipated completely. Thefappening leaked icloud photos of nude celebs
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