Pierce County Library System Data Breach Affects Over 340,000 Individuals

Pierce County Library System Data Breach Affects Over 340,000 Individuals

First seen 16 Dec 2025, 10:57 UTC •ThecyberexpressScworld •67.7

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A cyberattack on the Pierce County Library System in Washington exposed the personal information of over 340,000 individuals. The breach, which occurred between April 15 and 21, 2025, involved unauthorized access to the library's network, resulting in the theft of sensitive data including names, birthdates, Social Security numbers, and driver's license numbers.

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