Providing access to sensitive data

Method of providing, by a data system, access to sensitive data associated to a user, the data system storing an encrypted version of the sensitive data obtained as a result of encrypting the sensitive data using an encryption key associated to the user, the method comprising:

• receiving, from a user system, a user request requesting the provision of access;
• retrieving an encrypted version of the encryption key;
• retrieving at least one auxiliary key;
• obtaining a decrypted version of the encryption key by decrypting the encrypted version of the encryption key using the at least one auxiliary key;
• obtaining a decrypted version of all or part of the sensitive data by decrypting all or part of the encrypted version of the sensitive data using the decrypted version of the encryption key;
• and
• providing access to the decrypted version of all or part of the sensitive data through a secure communication channel.