Abstract
Conference Title: 2014 9th International Conference for Internet Technology and Secured Transactions (ICITST) Conference Start Date: 2014, Dec. 8 Conference End Date: 2014, Dec. 10 Conference Location: London, United Kingdom In the context of Data Integration Systems (DIS), integrating data across organizations varying in security and privacy requirements in addition to trust levels raises concerns of data leakage threats. In order to prevent these threats, an in depth threat analysis reflected on the architectural components of a DIS is required. This paper analyses data leakage threats and locations within the DIS architecture with a middle layer. The analysis is confirmed by 16 experts in the areas of security and data integration. An improved DIS architecture with a broader set of threats has resulted from these expert reviews.