Im just adding here the additional text from Jim’s message which included an example to help readers. This has been truncated from the post somehow.
“e.g. Datashield would release a table of diabetes diagnosis (type1,type2, none) vs some protected characteristic (e.g. ethnic group). With 0 in the ’none’ column for a given group — which discloses the private information that all people in that group had diabetes.”
I will close comment on this duplicate post as the discussion about this topic continues in this post in the Support forum. Could DataShield be adapted to meet accepted SDC norms?