diff --git a/supervisor/backups/validate.py b/supervisor/backups/validate.py
index 0420eeeea..f70a9784c 100644
--- a/supervisor/backups/validate.py
+++ b/supervisor/backups/validate.py
@@ -67,6 +67,13 @@ def v1_folderlist(folder_data: list[str]) -> list[str]:
     return folder_data
 
 
+def v1_protected(protected: bool | str) -> bool:
+    """Cleanup old protected handling."""
+    if isinstance(protected, bool):
+        return protected
+    return True
+
+
 # pylint: disable=no-value-for-parameter
 SCHEMA_BACKUP = vol.Schema(
     {
@@ -76,7 +83,9 @@ SCHEMA_BACKUP = vol.Schema(
         vol.Required(ATTR_NAME): str,
         vol.Required(ATTR_DATE): str,
         vol.Optional(ATTR_COMPRESSED, default=True): vol.Boolean(),
-        vol.Optional(ATTR_PROTECTED, default=False): vol.Boolean(),
+        vol.Optional(ATTR_PROTECTED, default=False): vol.All(
+            v1_protected, vol.Boolean()
+        ),
         vol.Optional(ATTR_CRYPTO, default=None): vol.Maybe(CRYPTO_AES128),
         vol.Optional(ATTR_HOMEASSISTANT, default=None): vol.All(
             v1_homeassistant,
diff --git a/tests/backups/test_validate.py b/tests/backups/test_validate.py
index 2f4c80663..ae8e28392 100644
--- a/tests/backups/test_validate.py
+++ b/tests/backups/test_validate.py
@@ -41,3 +41,18 @@ def test_v1_folder_migration():
     )
 
     assert data[validate.ATTR_FOLDERS] == [validate.FOLDER_ADDONS]
+
+
+def test_v1_protected():
+    """Test v1 protection migration."""
+    data = validate.SCHEMA_BACKUP(
+        {
+            **VALID_DEFAULT,
+            **{
+                validate.ATTR_PROTECTED: "8",
+                validate.ATTR_TYPE: validate.BackupType.FULL,
+            },
+        }
+    )
+
+    assert data[validate.ATTR_PROTECTED] is True