Is UpdraftVault data encrypted?

Yes: data is both sent over an encrypted connection to the storage cloud and stored encrypted on the server. Encrypted storage on the server requires your WordPress install to be running PHP 5.3 or later (which is very likely – the PHP version before that, 5.2,...

Will backups be deleted from my Vault if my quota fills up?

No. New backups will not be sent to UpdraftPlus Vault until quota is available (e.g. by deleting some backups, or purchasing more quota). They will remain stored and fully usable in the web hosting space for your website. Your UpdraftPlus backup report will inform you...

What happens when my Vault quota fills up?

If your quota allowance is full, no more backups can be sent to your UpdraftPlus Vault until either some space is made (e.g. by deleting some backups) or more quota is purchased. In the meanwhile, the backups will be kept on your webserver (and fully usable). Your...