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Insurance admin Landmark says data breach impacts 800,000 people

ID: f4daeb87-0f71-5ec2-bbef-1dac089e7f13

STIX ID: report--f4daeb87-0f71-5ec2-bbef-1dac089e7f13

Feed Name: Bleeping Computer

Threat Score
75/100

Date Published: 2024-10-24

Date Updated: 2026-04-20

Author: Lawrence Abrams

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Landmark Admin disclosed a May 13, 2024 cybersecurity incident impacting approximately 806,519 people after detecting suspicious activity and shutting down IT systems; investigators found evidence that files containing highly sensitive PII — including SSNs, financial account numbers, driver’s license and passport numbers, medical information, and insurance policy details — were accessed, and affected individuals will be notified while the investigation continues.

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