muppets
Given the public sector have lots of statutory powers to get (accurate) information that is very sensitive then the bods in charge are being a bit thick (par for the course as go to the "top").
Most of my private sector data is typically far less sensitive (only private sector with my real DOB are bank & employer, ditto national insurance number) so most private sector data breaches would give quite low grade information (in addition to fake DOB they typically get fake phone numbers etc)