One of the main new institutions introduced by the EU’s Data Act is the user’s right to access data (including metadata necessary to interpret or use the data) derived from a connected product the person is using or a service related to a connected product.
The data which a user can access may have significant commercial value for the data holder (e.g. the manufacturer of a connected product). Therefore, it may be crucial from the data holder’s perspective to ensure that such data remain undisclosed, or that use of the data be restricted.