USA: Kühlschrank an Microwelle: „Schon gehört? Weißes Haus macht Vorschläge zu Big Data…“

von Dr. Axel Spies, veröffentlicht am 02.05.2014

Das Weiße Haus hat gestern seinen PCAR Report on Big Data veröffentlicht, der sicherlich die weitere Diskussion beeinflussen wird. PCAR ist eine dem Präsidenten zuarbeitende Arbeitsgruppe u.a. zu  diesem Thema.  Bei Big Data handelt es sich um Datenbestände, die aufgrund ihres Umfangs, Unterschiedlichkeit oder ihrer Schnelllebigkeit nur begrenzt durch aktuelle Datenbanken und Daten-Management-Tools verarbeitet werden können (Näheres hier - Darstellung von jemandem, der es wissen muss).

Auf S. 11 des Report und nach allen möglichen Danksagungen geht es dann endlich los. Zitate:

  • Zur Verschlüsselung: “Some techniques for privacy protection that have seemed encouraging in the past are useful as supplementary ways to reduce privacy risk, but do not now seem sufficiently robust to be a dependable basis for privacy protection where big data is concerned.”
  • Zur Anonymisierung: „Anonymization is increasingly easily defeated by the very techniques that are being developed for many legitimate applications of big data. In general, as the size and diversity of available data grows, the likelihood of being able to re‐identify individuals (that is, re‐associate their records with their names) grows substantially. While anonymization may remain somewhat useful as an added safeguard in some situations, approaches that deem it, by itself, a sufficient safeguard need updating.”
  • Zu Löschungspflichten: “As described above, many sources of data contain latent information about individuals, information that can be known only if the holder expends analytic resources, or that may become knowable only in the future with the development of new data‐mining algorithms. In such cases it is practically impossible for the data holder even to surface “all the data about an individual,” much less delete it on any specified schedule or in response to an individual’s request. Today, given the distributed and redundant nature of data storage, it is not even clear that data, even small data, can be destroyed with any high degree of assurance.”
  • Zu Metadaten: “Metadata are ancillary data that describe properties of the data such as the time the data were created, the device on which they were created, or the destination of a message. Included in the data or metadata may be identifying information of many kinds. It cannot today generally be asserted that metadata raise fewer privacy concerns than data.”

Schlussfolgerung:The use of technical measures for enforcing privacy can be stimulated by reputational pressure, but such measures are most effective when there are regulations and laws with civil or criminal penalties. Rules and regulations provide both deterrence of harmful actions and incentives to deploy privacy‐protecting technologies. Privacy protection cannot be achieved by technical measures alone.”

Für die neue deutsche BfDI-Beauftragte, Frau Voßhoff,  gehört Big Data datenschutzrechtlich zur „größten Herausforderung" (link).

Wie schätzen Sie die Chancen und Gefahren von „Big Data“ ein?

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