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Linking Identity

Linking Identity. Anonymizer. Rob. Smith. 6/7/1972. Robert. 7/6/1972. 1972. Variants. 0d06b31faa7c44682d770706640465d2 B5e341a4b0cdf0e8de7b6f957818d746 bd0ec72f2424729efa7baac9a636970a. The Anonymizer. Name: Rob Smith DOB: 6/7/1972. cd5dced41028cb7ea51d52a888089d73

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Linking Identity

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  1. Linking Identity

  2. Anonymizer Rob Smith 6/7/1972 Robert 7/6/1972 1972 Variants 0d06b31faa7c44682d770706640465d2 B5e341a4b0cdf0e8de7b6f957818d746 bd0ec72f2424729efa7baac9a636970a The Anonymizer Name: Rob Smith DOB: 6/7/1972 cd5dced41028cb7ea51d52a888089d73 00c9782a552a2d09b1b85e0d0db52ef3 7f2b6e48ea7d042bbe85e46ef2107da4

  3. Mark Randy Smith DOB: 06/07/74 123 Main Street 713 731 5577 M. Randal Smith DOB: 06/07/74 713 731 5577 Patient Identifiers Are First Anonymized Re-Constructed Identities Observations Sensors Lab Results Record #A-701 FEATURES: Mark Randy Smith, M. Randal Smith 123 Main Street 713 731 5577 DOB 06/07/74 Outcomes Record #B-9103

  4. Patient Identifiers Are First Anonymized Re-Constructed Identities Observations Sensors Cd5dced41028cb … 00c9782a552a2 … 7f2b6e48ea7d0 … … Lab Results Record #A-701 0d06b31faa7c… B5e341a4b0c… 00c9782a552… … FEATURES: Mark Randy Smith, M. Randal Smith 123 Main Street 713 731 5577 DOB 06/07/74 Outcomes Record #B-9103

  5. Identity Resolution Occurring Post Anonymization Re-Constructed Identities Observations Sensors Cd5dced41028cb … 00c9782a552a2 … 7f2b6e48ea7d0 … … Lab Results Record #A-701 0d06b31faa7c… B5e341a4b0c… 00c9782a552… … FEATURES: Mark Randy Smith, M. Randal Smith 123 Main Street 713 731 5577 DOB 06/07/74 Outcomes Record #B-9103

  6. FEATURES: Mark Randy Smith, M. Randal Smith 123 Main Street 713 731 5577 DOB 06/07/74 Patient Linkage Data is Not Stored in Clear Text Re-Constructed Identities Observations Sensors Cd5dced41028cb … 00c9782a552a2 … 7f2b6e48ea7d0 … … Lab Results Record #A-701 0d06b31faa7c… B5e341a4b0c… 00c9782a552… … Record #B-9103 Outcomes

  7. FEATURES: Cd5dced41028cb7ea51… 00c9782a552a2d09b1b… 7f2b6e48ea7d042bbe8… … Patient Linkage Data is Stored Anonymized Re-Constructed Identities Observations Sensors Cd5dced41028cb … 00c9782a552a2 … 7f2b6e48ea7d0 … … Lab Results Record #A-701 0d06b31faa7c… B5e341a4b0c… 00c9782a552… … Outcomes Record #B-9103

  8. Policy Controls Policy Controls Observations Sensors Mark Randy Smith DOB: 06/07/74 123 Main Street 713 731 5577 Lab Results Record #A-701 M. Randal Smith DOB: 06/07/74 713 731 5577 Outcomes Record #B-9103 Maximizing Discovery - Minimizing Disclosure! Discovery Record #A-701 Matches Record #B-9103

  9. Benefits of Anonymous Resolution • Unlike other anonymization techniques, identities can be disambiguated after anonymization (versus k-anonymity techniques) • Guaranteed source attribution – resulting in a fully auditable and reconcilable system • Domain-specific implementations virtually eliminates the opportunities for re-purposing the anonymized database • Where there is sharing or there are pressures to share sensitive identity data, presents an important alternative to “wide open” sharing • Enhanced protections against unintended information disclosure (e.g., insider threat resistant) 61

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