Landmark Admin
ent_13bbe4e93386d310b22b278d
Disclosures
15
State AG · 8 jurisdictions
Incidents
4
filings grouped by incident
Max affected reported
806,519
nationwide · State AG IN
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- Landmark Admin
- Normalized
- landmark admin— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- No match
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- None on record
Disclosure history (15)newest first
- 🐻California State AGas victim2025-04-11
Landmark Admin, LLC, a third-party administrator for insurance carriers, experienced a data breach from May 13 to June 17, 2024. Unauthorized access resulted in data encryption and exfiltration. The company detected suspicious activity on May 13, 2024, and engaged forensic investigators. Remediation included server hardening, MFA implementation, and staff training. Identity theft protection services are offered to affected individuals.
- 🦞Maine State AGas victim2025-04-11
Landmark Admin, LLC reported an internal system breach that occurred on May 13, 2024, and June 17, 2024. The breach was discovered on May 13, 2024, and affected 1,528 Maine residents. The company is offering 12 months of identity theft protection services to those affected.
- 🌲Washington State AGas victim2025-04-11
Landmark Admin, LLC, a business sector entity reported a ransomware incident to the Washington Attorney General. The organization became aware of the incident on 2024-05-13 and filed notice on 2025-04-11. 11,691 Washington residents were affected. 333 days elapsed between awareness and notification. 0 days to identify the breach. 35 days to contain the breach.
- 🦫Oregon State AGas victim2024-10-23
Landmark Admin, LLC reported a data breach to the Oregon Attorney General. The breach was reported on 2024-10-23. The breach occurred during 5/13/2024 - 6/17/2024. The breach was discovered on 5/13/2024. Notice was sent on 10/23/2024.
- 🏎️Indiana State AGas victim2024-10-23
Landmark Admin, LLC reported a data breach to the Indiana Attorney General. The breach occurred on 2024-05-13 and was reported on 2024-10-23. 10,750 Indiana residents were affected. 806,519 individuals affected in total.
- 🦞Maine State AGas victim2024-10-23
Landmark Admin reported an external system breach affecting 566 Maine residents. The breach occurred between May 13, 2024, and June 17, 2024, and was discovered on May 13, 2024. The company notified affected individuals on October 23, 2024, and offered 12 months of credit monitoring services.
- 🐻California State AGas victim2024-10-23
Landmark Admin, LLC, a third-party administrator for insurance carriers, experienced a data breach from May 13 to June 17, 2024. Unauthorized access resulted in data encryption and exfiltration. Affected data includes names, tax identification numbers, and for some, driver's license, passport, and health information. The company engaged forensic investigators, contained the incident, and implemented extensive remediation measures including MFA and server hardening.
- 🌲Washington State AGas victim2024-10-23
Landmark Admin, LLC, a finance sector entity reported a ransomware incident to the Washington Attorney General. The organization became aware of the incident on 2024-05-13 and filed notice on 2024-10-23. 4,795 Washington residents were affected. 163 days elapsed between awareness and notification. 0 days to identify the breach. 35 days to contain the breach.
- 💎Delaware State AGas victim2024-10-23
State AG breach notification from Delaware regarding Landmark Admin, LLC. The source PDF attachment contains only raw PDF internal object streams and metadata markers; no readable incident narrative, dates, or data types are present.
- 🍁Vermont State AGas victim2024-10-23
Landmark Admin, LLC, a third-party administrator for insurance carriers, notified consumers of a data breach occurring between May 13 and June 17, 2024. Unauthorized actors encrypted and exfiltrated data, including names, tax IDs, driver's licenses, and medical information. Landmark engaged forensic investigators, secured systems, and offered 12 months of identity protection services.
- 🦬Montana State AGas victim2024-06-27
Landmark Admin, LLC reported a data breach to the Montana Attorney General. The breach was reported on 2024-06-27. The breach occurred from 5/13/2024 to 5/14/2024. 2,987 Montana residents were affected.
- 🦞Maine State AGas victim2024-06-27
Landmark Admin, LLC reported a data breach on May 13, 2024, which was also the date of discovery. The breach, described as an external system breach (hacking), affected one Maine resident who was notified on June 12, 2024.
- 🍁Vermont State AGas victim2024-06-27
Landmark Admin, LLC, a third-party administrator for life insurance carriers, notified consumers of a data breach detected on May 13, 2024. An unauthorized third party accessed the network, potentially compromising names, addresses, SSNs, tax IDs, driver's licenses, passport numbers, financial account numbers, medical information, and policy details. Forensic investigation is ongoing.
- 🦞Maine State AGas victim2024-06-16
Landmark Admin LLC reported an external system breach (hacking) that occurred and was discovered on May 13, 2024. According to the filing with the Maine Attorney General, zero Maine residents were affected by the incident. Consumers were notified on June 12, 2024. The company did not offer identity theft protection services. The specific types of data compromised were not specified in the public notice.
- 🦞Maine State AGas victim2024-06-12
Landmark Admin LLC reported an external system breach (hacking) that occurred and was discovered on May 13, 2024. According to the filing, zero Maine residents were affected. Substitute notices were sent to consumers on June 12, 2024. Identity theft protection services were not offered.