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Today in History: California data breach exposes 250,000 social security numbers

4/5/2026

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Summary

Story summary

On April 5, 2005, California reported the first significant data breach, where hackers stole 250,000 Social Security numbers from a state data center. This incident raised concerns about data security and privacy, highlighting vulnerabilities in the handling of sensitive information by government agencies. The breach underscored the need for stronger cybersecurity measures.

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Story summary

On April 5, 2005, California reported the first significant data breach, where hackers stole 250,000 Social Security numbers from a state data center. This incident raised concerns about data security and privacy, highlighting vulnerabilities in the handling of sensitive information by government agencies. The breach underscored the need for stronger cybersecurity measures.