(delete_data)=

# Delete data

> This task is the responsibility of {ref}`role_tresa`.

At the end of a project involving a TRE, after confirmation that any outputs have been downloaded by the authorised egress contact (see {ref}`perform_data_egress`), the data should be deleted in a timely fashion.

Upon tearing down the TRE infrastructure (see {ref}`teardown_tre`), the data will persist within the Azure Storage Account that was created when the TRE was deployed. This includes both the original project data uploaded via ingress and the project outputs.

```{warning}
- Deleting data from a Microsoft Azure Storage Account is irreversible
- Make sure that {ref}`perform_data_egress` is complete before performing this step
```

You can delete the data by deleting the Azure Storage Account itself. This can be found via the Azure Portal and will be named something like`<shm id><sre id>data<hash string>`, for example `prod4sandboxdatanrzabxpjid`.

- Once you have found the storage account, navigate to "Locks" on the left and delete the lock
- Click "Overview" on the left and should now be able to click the "Delete" icon at the top