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Jerry Bradshaw - National Committee on Vital and Health Statistics

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Probabilistic Algorithm Vulnerability<br />

Ms. J<strong>on</strong>es is widowed, has lived in<br />

Maumelle, Arkansas for 10 years<br />

<strong>and</strong> has numerous records <strong>on</strong> the<br />

system.<br />

Last Name…J<strong>on</strong>es<br />

First Name... Linda<br />

Sex………….Female<br />

DOB………..10/19/1948<br />

Zip Code….. 72113<br />

Ms. J<strong>on</strong>es re-marries <strong>and</strong> moves to<br />

her new husb<strong>and</strong>s home. After a<br />

year she sees a new physician who<br />

generates new records.<br />

Last Name…Smith<br />

First Name... Linda<br />

Sex………….Female<br />

DOB………..10/19/1948<br />

Zip Code….. 71609<br />

> The AHIN Database C<strong>on</strong>tains Records <strong>on</strong> 1.5 Milli<strong>on</strong> Individuals<br />

> Of the 1.5 Milli<strong>on</strong> Individuals, 12,000 Have Linda as a First Name<br />

> Of the 12,000 Named Linda, 7 Have a DOB of 10/19/1948<br />

> Likelihood is the New Record W<strong>on</strong>’t be Matched<br />

13

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