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Data Leakage Detection

J. Balakumar, R. Gopinath


We study the following problem: A data distributor has given sensitive data to a set of supposedly trusted agents (third parties). Some of the data are leaked and found in an unauthorized place (e.g., on the web or somebody’s laptop). The distributor must assess the likelihood that the leaked data came from one or more agents, as opposed to having been independently gathered by other means. We propose data allocation strategies (across the agents) that improve the probability of identifying leakages. These methods do not rely on alterations of the released data (e.g., watermarks). In some cases, we can also inject ―realistic but fake‖ data records to further improve our chances of detecting leakage and identifying the guilty party.


Allocation Strategies, Data Leakage, Data Privacy, Fake Records, Leakage Model.

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R. Agrawal and J. Kiernan, ―Watermarking Relational Databases,‖Proc. 28th Int’l Conf. Very Large Data Bases (VLDB ’02), VLDB Endowment, pp. 155-166, 2002.

P. Bonatti, S.D.C.di Vimercati, and P. Samarati, ―An Algebra for Composing Access Control Policies,‖ ACM Trans. Information and System Security, vol. 5, no. 1, pp. 1-35, 2002.

P. Buneman, S.Khanna, and W.C.Tan,―Why and Where: A Characterization of Data Provenance,‖ Proc. Eighth Int’l Conf. Database Theory (ICDT ’01), J.V. den Bussche and V. Vianu, eds.,pp. 316-330, Jan. 2001.

P. Buneman and W.C.Tan, ―Provenance in Databases,‖ Proc. ACM SIGMOD, pp. 1171-1173, 2007.

Y. Cui and J. Widom, ―Lineage Tracing for General Data Warehouse Transformations,‖ The VLDB J., vol. 12, pp. 41-58, 2003.

S. Czerwinski,R. Fromm, and T.Hodes, ―Digital Music Distribution and Audio Watermarking,‖, 2007.

F. Guo, J.Wang, Z.Zhang, X.Ye, and D. Li, ―An Improved Algorithm to Watermark Numeric Relational Data,‖ Information Security Applications, pp.138-149, Springer, 2006.

F. Hartung and B.Girod, ―Watermarking of Uncompressed and Compressed Video,‖ Signal Processing, vol. 66, no. 3, pp. 283-301, 1998.

S.Jajodia, P.Samarati, M.L.Sapino, and V.S. Subrahmanian, ―Flexible Support for Multiple Access Control Policies,‖ ACM Trans. Database Systems, vol. 26, no. 2, pp. 214-260, 2001.

Y.Li, V.Swarup, and S.Jajodia, ―Finger – printing Relational Databases: Schemes and Specialties,‖ IEEE Trans. Dependable and Secure Computing, vol. 2, no. 1, pp. 34-45, Jan.-Mar. 2005.

B. Mungamuru and H. Garcia-Molina, ―Privacy, Preservation and Performance: The 3 P’s of Distributed Data Management,‖ technical report, Stanford Univ., 2008.

V.N.Murty,―Counting the Integer Solutions of a Linear Equation with Unit Coefficients,‖ Math. Magazine, vol. 54, no. 2, pp. 79-81, 1981.

S.U.Nabar, B.Marthi, K.Kenthapadi, N. Mishra, and R.Motwani,―Towards Robustness in Query Auditing,‖ Proc. 32nd Int’l Conf. Very Large Data Bases (VLDB ’06), VLDB Endowment, pp. 151-162, 2006.

P.M. Pardalos and S.A. Vavasis, ―Quadratic Programming with One Negative Eigenvalue Is NP-Hard,‖ J. Global Optimization,vol. 1, no. 1, pp. 15-22, 1991.

P.Papadimitriou and H.Garcia-Molina, ―Data Leakage Detection,‖ technical report, Stanford Univ., 2008.


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