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44 disclosed this week · 26,355 on record

Landmark Admin

Disclosed Jun 24, 20241,613,773 affectedConfirmed

Official notice

Ransomware at insurance administrator Landmark Admin encrypts and exfiltrates data

Texas-based third-party insurance administrator Landmark Admin detected suspicious activity on May 13, 2024; unauthorized access lasted until June 17, and data was encrypted and exfiltrated. Affected people were producers, policyowners, insureds and beneficiaries of carriers including Liberty Bankers Insurance Group.

What is known

People affected1,613,773 (as reported by the organization)
DisclosedJun 24, 2024
DiscoveredMay 13, 2024
HappenedMay 13, 2024
AttackRansomware
Data exposedNamesGovernment IDsHealthInsuranceCredentials and tokensOther
SectorInsurance · US
StatusConfirmed

Sources

Notices filed

History of this record
source2026-09-25
empty to https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/files/DB-Year-to-Date-Reportdec-2024.pdfby backfillSource
source2026-09-25
empty to https://ago.vermont.gov/document/2024-06-27-landmark-admin-data-breach-notice-consumersby backfillSource
source2026-09-25
empty to https://ago.vermont.gov/document/2024-10-23-landmark-admin-data-breach-notice-consumersby backfillSource
sector2026-09-25
finance to insuranceby seedSource
data_types2026-09-25
["names","government-id","health","insurance","credentials"] to ["names","government-id","health","insurance","credentials","other"]by seedSource
summary2026-09-25
empty to Texas-based third-party insurance administrator Landmark Admin detected suspicious activity on May 13, 2024; unauthorized access lasted until June 17, and data was encrypted and exfiltrated. Affected people were producers, policyowners, insby seedSource
title2026-09-25
empty to Ransomware at insurance administrator Landmark Admin encrypts and exfiltrates databy seedSource
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 1613773by backfillSource
disclosed2026-09-25
2024-10-23 to 2024-06-24by backfillSource
data_types2026-09-25
[] to ["names","government-id","health","insurance","credentials"]by backfillSource
sector2026-09-25
other to financeby backfillSource
attack2026-09-25
unknown to ransomwareby backfillSource
discovered2026-09-25
empty to 2024-05-13by backfillSource
disclosed2026-09-25
2025-04-11 to 2024-10-23by backfillSource
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

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