Mariner Wealth Advisors, LLC

Mariner Wealth Advisors, LLC reported unauthorized access to three associates' cloud applications. The incident occurred between November 21, 2025, and January 13, 2026, and was detected on November 24, 2025. A criminal third party accessed the accounts and downloaded files containing personal information, including names, account numbers, dates of birth, and Social Security numbers. The company contained the incident, secured the accounts, and is offering 12 months of complimentary credit monitoring to affected individuals.

Mariner Wealth Advisors, LLC notified Massachusetts and other state regulators of a security incident involving unauthorized access to three associates' cloud applications. Discovered November 24, 2025, a criminal third party accessed accounts and downloaded files containing names, account numbers, dates of birth, and SSNs/government IDs. The incident was isolated to these apps; core financial systems were unaffected. Mariner contained the breach, engaged law enforcement and forensic researchers, and is offering 24 months of complimentary credit monitoring.

Mariner Wealth Advisors, LLC reported an external system breach (hacking) occurring on November 21, 2025, discovered on November 24, 2025. The incident affected a total of 8,995 individuals, including 17 Maine residents. The breach involved the acquisition of personal identifiers and government IDs. The entity provided written notification to affected individuals on May 29, 2026, and offered 12 months of credit and identity monitoring through CyberScout (TransUnion).

Mariner Wealth Advisors, LLC reported a security incident to the New Hampshire Attorney General on June 1, 2026. A criminal third party impersonated MWA IT help desk agents via a spoofed domain to phish credentials from three associates starting November 21, 2025. The incident affected 35 New Hampshire residents, exposing names, account numbers, dates of birth, and SSNs/government IDs. The accounts were isolated, law enforcement was notified, and victims were offered 12 months of credit monitoring.

Mariner Wealth Advisors LLC reported a data breach to the Indiana Attorney General. The breach occurred on 2025-11-21 and was reported on 2026-05-29. 19 Indiana residents were affected. 8,995 individuals affected in total.