You have the option to store an encrypted Home Assistant backup on Home Assistant Cloud.

The Home Assistant Cloud backup option is available if you have a Home Assistant Cloud subscription, at no additional cost.

• If Home Assistant Cloud backup is enabled in Home Assistant, 1 encrypted backup file is stored on Home Assistant Cloud.
• Home Assistant Cloud will only store the latest backup. Older versions will be deleted automatically.
• The backup file must be smaller than 5GB in size. Larger files cannot be stored on Home Assistant Cloud.
  • If the backup file is larger, you’ll be notified to repair.
• The backup on Home Assistant Cloud is always encrypted.
  • The key required to decrypt the backup is stored in the backup emergency kit.
• Nabu Casa can not access your data or the encryption key required to decrypt your backup.

Why store a backup in Home Assistant Cloud?

You can use Home Assistant Cloud as part of your 3-2-1 backup strategy to minimize your smart home downtime.

Cloud as your off-site backup location

Storing your latest Home Assistant backup on Cloud allows you to recover your system from hardware failures, data corruption, and unexpected disasters affecting your local system. As it is stored outside your system, and off-site, this Home Assistant backup will still be available even if your local Home Assistant system is affected.

Encrypted and private

Home Assistant Cloud is the privacy-focused cloud. Nabu Casa uses Cloudflare as its storage provider to store backups on Home Assistant Cloud. It specifically uses Cloudflare’s West Europe servers due to high privacy standards compared to other regions.

To maintain the security and privacy of your smart home, backups stored on Home Assistant Cloud are always encrypted using AES-128. Encryption is a method of converting data into a coded format so that it can only be read by someone who has the encryption key. This ensures that your data about your home remains private. So even if someone else had a copy of your Home Assistant backup, it is unreadable for them without the encryption key.

Nabu Casa does not have access to the encryption key.

Note: Neither your Home Assistant account password nor your Nabu Casa Account password acts as your encryption key. It is a distinct password that must be stored somewhere safe alongside those passwords.

Related topics

• About the backup emergency kit
• Creating a backup in Home Assistant
• Nabu Casa account page
• Restoring your Home Assistant installation
• Troubleshooting: backup is too large
• Troubleshooting: can't find the encryption key