Whatsapp has had end-to-end encryption since 2016. But it only added encryption to cloud backups in 2021. They didn't share any key material with Google, just b

Whatsapp has had end-to-end encryption since 2016. But it only added encryption to cloud backups in 2021. They didn't share any key material with Google, just backed up the messages and media without any encryption to begin with.