Scammers take advantage of any current topic to attack their victims. The new fraud method refers to the third dose of the coronavirus vaccine. Apparently, and as this wording has been confirmed by a neighbor, they call by phone, supposedly from the Ministry of Health to administer the third dose of the coronavirus vaccine.
The operator that makes the call certifies that it has all the citizen's data (email, address, telephone number) and requests the code that they have supposedly sent by SMS. This code, if given to the operator, hacks the mobile, so from there they get all the data.
Remember that you do not have to provide data over the phone and that in case you have to administer the vaccine, it is Health who previously quotes you without any code.
Where did you get the previous data from? Who has sold them or who has bought them?