...
Starting with version 1.9.0, Unimus supports stripping sensitive data from backups of devices.
When this feature is enabled, passwords, pre-shared-keys, and other sensitive data will not be stored in backups of devices.
This can be enabled in "Other settings Backups > Configuration > Sensitive data stripping".
You can enable stripping sensitive data globally ("Default sensitive data stripping policy"), or per-Tag.
...