> For the complete documentation index, see [llms.txt](https://docs.ionos.com/cloud/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ionos.com/cloud/backup-and-storage/backup-service/how-tos/apply-backup-encryption.md).
# Apply Backup Encryption
By default, the space.vars.backup\_service uses AES-256 server-side encryption for storage devices, preventing unauthorized access outside the server. This document describes how to apply client-side AES-256 encryption to a protection plan using a password.
{% hint style="info" %}
**Prerequisites:**
* Make sure that your browser allows popups.
* Only contract administrators, owners, or users with the **Create Backup Units** privilege can manage Backup Units.
{% endhint %}
{% stepper %}
{% step %}
## Navigate to the Backup Unit Manager
1\. In the **DCD**, go to **Menu** > **Backup & Storage** > **Backup Unit Manager**.
2\. Select the required backup unit and click **Open Console**.
{% endstep %}
{% step %}
## Start a new protection plan
Backup encryption can be enabled only during creation of the new protection plan.
1\. Navigate to **MANAGEMENT** > **Protection plans**.
2\. Click **Create Plan** in the right pane.
{% endstep %}
{% step %}
## Set the encryption password
1\. Click on the **Specify password** link in the **Encryption** section.
2\. Enter a strong encryption password and confirm it to ensure there are no typos. Store this password securely, as you will need it to restore backups.
{% endstep %}
{% step %}
## Configure additional settings
1\. Configure any additional settings for your protection plan.
2\. Assign the protection plan to your devices.
{% endstep %}
{% endstepper %}
{% hint style="success" %}
**Result:** The backups are encrypted with the specified password, ensuring that the data is secure and can only be restored using this password.
{% endhint %}
{% hint style="warning" %}
**Note:** Backup agents on your devices encrypt data locally before sending it to the space.vars.backup\_service. If you lose your encryption password, you cannot restore your data. Store this password securely.
{% endhint %}
---
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