How-to-codeu.md

@@ -59,14 +59,22 @@ Issues regarding Article 10(2) can be filed as [explained before](codeu#opening-
 - Specify that it is an Article 10(2) issue.
 - Specify the VIN. There should be one issue per vehicle.
 - If you want to share related data with the VECTO developers:
-  - **Encrypt it** and include it as an attachment to the issue (by clicking on the paperclip :paperclip: button).
+  - **Encrypt it\*** and include it as an attachment to the issue (by clicking on the paperclip :paperclip: button).
   - Afterwards, you can share the password to open the encrypted data with the [JRC-VECTO functional mailbox](mailto:JRC-VECTO@ec.europa.eu).
 
+**\* To encrypt data** you can use the free software [7zip](https://7-zip.org/) as follows:
+1. [Download](https://7-zip.org/download.html) and install the corresponding version.
+2. In the file explorer, select the files (or folder) you want to encrypt.
+3. Right-click on them and press _7-Zip --> Add to Archive_.
+4. Enter (or generate) an _Encryption Password_.
+5. Choose the encryption method (_AES-256_ by default).
+6. Press _Ok_ and wait for the compression to be completed.
+
 ## Codebase
 
 The [codeu](https://code.europa.eu/) platform is based on GitLab, and the VECTO codebase from all the published releases is publicly available. If you want to check the code of a specific project release, navigate to it and click on _Assets --> Source code (zip)_ (or your desired compression format). For example:  
 ![release codebase](uploads/2dc7f02ec58a88cd3cdfced4cec91e59/image.png)  
-Alternatively, you can navigate to the corresponding project and pick the tag from the drop-down menu. Then click on download or clone:  
+Alternatively, you can navigate to the corresponding project and pick the tag from the drop-down menu. Then click on _Download_ or _Clone_:  
 ![project tag](uploads/a9ea0680434e8ae8faed19b328e17ac4/image.png)
 
 # Codeu accounts