Verfahren zur sicheren Verarbeitung von Daten

Methods and systems for safely handling at least one dataset, in particular a document (10, 20), particularly in a cloud computer environment are described, e.g. wherein a) the at least one dataset (10, 20) is partitioned into at least two dataset partitions (1, 2, 3, 4), b) the at least two dataset partitions (1, 2, 3, 4) are stored on and / or retrieved from at least two computer sites (100, 200, 300, 400) being part of, e.g., a cloud computer environment, so that on no computer site (100, 200, 300, 400) sufficient, in particular all, dataset partitions (1, 2, 3, 4) of the at least one dataset (10, 20) are present, in particular not present at the same time.