You are a digital communications officer for the European External Action Service (EEAS). Your team needs to securely share a large, sensitive dataset regarding a new diplomatic initiative with a partner organization located outside the EU. The partner organization requires the data to be accessible via a secure link, but they do not have an EEAS email account to receive the file directly. The data contains personal data of EU citizens. Which of the following actions BEST aligns with EU digital security standards and data protection principles while ensuring the data is accessible to the partner?