No they do not. Apple intentionally preserves backdoors in the e2ee of iMessage (via iCloud Backup) to aid the FBI. https://www.reuters.com/article/world/excl

No they do not. Apple intentionally preserves backdoors in the e2ee of iMessage (via iCloud Backup) to aid the FBI. https://www.reuters.com/article/world/exclusive-apple-dropped-plan-for-encrypting-backups-after-fbi-complained-sour-idUSKBN1ZK1CO/ https://www.reuters.com/article/world/exclusive-apple-droppe... (the opt-in e2ee for iCloud Backups is irrelevant - approximately nobody turns it on, so everyone you talk to is leaking all of your chats.)