Watermarking
The Privitar Data Security Platform automatically embeds a unique stamp (called a watermark) on certain types of transformed datasets. These include datasets transformed with the following tokenization types:
Because of the way the watermark is embedded, the file must have a large enough number of rows to contain the watermark. As a rule, files larger than 1,000 rows, with enough unique values, can contain watermarks.
You can use this stamp to trace the origin of a file to the project for which it was originally produced. The presence of a watermark is a good incentive to a file's recipient to make sure that they are not careless or malicious with the data, and also gives traceability in the event of a data breach or if data turns up somewhere unexpected.
Given an arbitrary file produced by the the platform, you can investigate the content to identify to which project, if any, a file belongs. Identifying the project gives access to its metadata properties, such as the file's intended purpose, who had the ability to create or access the data, and the policy under which access was granted.