I have been joining the KITS Conference in Berlin recently and there have been lively discussions about privacy as enabler or disabler of the digital future in Germany. Startup consortia and inter-trade organizations like BITKOM think that data minimization is no longer acceptable because it hinders digital innovation. And also at the German BSI IT Security Congress have been statements like “We no longer need data minimization. We need to secure our data.”
Apparently those people have a different understanding of security. In my eyes security protects assets like data to reduce risks. Risks are usually determined by multiplying the likelihood with the impact. E.g. the risk that an administrator maliciously steels your data by downloading it from the database could be reduced by lowering the number of admins by 50%. This will lower the likelihood and the corresponding risk by 50% as well. The impact is influenced by the amount of data and its criticality. If you practice data minimization the amount of data and consequently the impact will be reduced. Thus, data minimization is like the need-to-know principle very important for security because it lowers the impact not only for one risk like data theft by administrators, but for all risks associated with this data set. Furthermore anonymization and privacy by design can help to perform data analysis anyway.
And IMHO the digital future in Germany is rather hindered by a risk-averse and a bit old-fashioned culture than by data minimization 😉