Everything in iCloud, including your encrypted messages, are easily accessible to Apple[0] and will be released without a fight, despite Apple's vaunted privacy stance. (Perhaps that social contract has some fine print if the CEO of your company looks at your files and decides you're guilty without wasting time with 'a jury of your peers' and all that nonsense.)

Android (with Google) offers the same functionality (AFAIK) as iCloud, but sometimes you just prefer that your private photos remain just that.

0. https://news.vice.com/en_us/article/xwm4ya/paul-manafort-may...