They can reset it on their original device if they forget it,” WhatsApp said. Once a user sets their backup password, it is not known to us. “We know that some will prefer the 64-digit encryption key whereas others want something they can easily remember, so we will be including both options. The cloud-stored encryption key can’t be used without the user’s password, which isn’t known by WhatsApp. Users can store the encryption key offline or in a password manager of their choice, or they can create a password that backs up their encryption key in a cloud-based “backup key vault” that WhatsApp has developed. In the “coming weeks,” users on WhatsApp will see an option to generate a 64-digit encryption key to lock their chat backups in the cloud. WhatsApp says it will offer users two ways to encrypt their cloud backups, and the feature is optional. The company said it has devised a system to enable WhatsApp users on Android and iOS to lock their chat backups with encryption keys. “WhatsApp is the first global messaging service at this scale to offer end-to-end encrypted messaging and backups, and getting there was a really hard technical challenge that required an entirely new framework for key storage and cloud storage across operating systems,” said Facebook’s chief executive Mark Zuckerberg in a post announcing the new feature. Now WhatsApp says it is patching this weak link in the system. UK offers cash for CSAM detection tech targeted at E2E encryption

Is whatsapp safe to use 2021