Samenvatting

This article focuses on a phenomenon often called ‘function creep’. This is the process whereby new functions are added to systems that are basically intended for other purposes, or when systems or data originally intended for function A are linked to other systems or data having function B. New technical possibilities have definitely paved the way for function creep and a growing number of ICT-applications appear no longer limited to the purpose for which they were originally set up. Function creep is an inherent feature of innovation. But at the same time it poses risks if considered from a privacy perspective. After detailing many examples of function creep, the article elaborates on a potential risk not often discussed: loss of data quality. The analysis concludes in arguing that citizens can act as a crucial countervailing power to limit the expansion of function creep. This however requires that governments are more open and accountable to allow for a transparent and verifiable comparison between the interests at stake.