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Central Securities notifies stockholders of data breach that leaked SSNs; ransomware gang claims responsibility

Central Securities Corporation this week confirmed it notified an undisclosed number of people about an April 2024 data breach that compromised names, Social Security numbers, stockholder account numbers, and addresses. Ransomware group Underground claimed responsibility for the attack on June 10, 2024, saying it stole 42.8 GB of data. Third-parties report the ransom demand was $3 million. CSC has not…