Anonymisation has become a key feature for both public administrations and the enterprise sharing personal data across jurisdictions and for GDPR compliance. However, the roles of Data Controllers and Data Officers are still unclear for many, as it is the need for efficient anonymisation and pseudonymisation. There are many advantages to having clear anonymisation policies, beyond the simple compliance with GDPR to avoid fines. The same techniques can be applied to extract knowledge from Big Data, to obfuscate content, or to ensure key entities and people that need [or need not] be mentioned actually do so. In this session we will learn if 1. We are data officers or data controllers 2. How to act accordingly 3. What benefits does anonymisation offer 4. Basic GDPR concepts and how they affect an IT department and data being shared daily from an organisation (mails, documents, pptx, etc.) 5. NLP features within anonymisation that offer key knowledge extraction.