iCloud Photo e2ee still shares hashes of the plaintext with Apple, which means they can see the full list of everyone who has certain files, even if they all ha

iCloud Photo e2ee still shares hashes of the plaintext with Apple, which means they can see the full list of everyone who has certain files, even if they all have e2ee enabled. They can see who had it first, and who got it later, and which sets of iCloud users have which unique files. It effectively leaks a social graph. It’s also not available in China.