HackingHealthcareProfessional ServicesHealthcareData ExfiltratedCustomer Data InvolvedPHIHealth (basic)Government IDIdentity (basic)Financial accountCriticalContained

Medusind, Inc.

bd_1c5c691e1494de49 · schema v1 · pii pii-v1

Severity

Critical

Discovered

Dec 29, 2023

Filed

May 19, 2026

To disclose

—

Affected · nationwide

360,9341,037 in this filing

Confidence

66%

Full breach record for Medusind, Inc. →2 incidents on file

Medusind, Inc., a revenue cycle management company, discovered suspicious activity on December 29, 2023. Investigation revealed a cybercriminal may have obtained files containing personal information for approximately 360,934 individuals nationwide, including 1,037 Maryland residents. Affected data includes PHI, health insurance info, payment info, and government IDs. Medusind took systems offline, engaged forensics, notified law enforcement, and offers 24 months of identity monitoring.

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Incident timeline

Dec 29, 2023

Begins

Dec 29, 2023

Discovered

May 19, 2026

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed360,934 affectedView incident

Name: Medusind, Inc.
norm: medusind

Name: Medusind, Inc.
norm: medusind
Industry: HealthcarellmProfessional Servicesllm

Discovered: Dec 29, 2023
Breach occurred: Dec 29, 2023
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 7, 2025
Affected individuals: 360,934state + nationwide
Data types: PHIHealth (basic)Government IDIdentity (basic)Financial account
Attack vector: Unknown
MITRE ATT&CK: T1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Reported the incident to law enforcement and government partners, including the FBI

During the incident: Took the affected systems offline
Hired a leading cybersecurity forensic firm to conduct an investigation
Reported the incident to law enforcement and government partners, including the FBI
Implemented enhanced security measures to prevent similar incidents from occurring in the future
Changes made: Offered 24 months of identity monitoring services at no cost to the notified individuals
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://oag.maryland.gov/resources-info/SBN%20Documents/2025/ITU-376128.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 19, 2026
Raw hash: ba231cc04b5dc53b96fa8411357853054ccd1dc5788da163de16cf7f79dc2908

Reporting entityMedusind, Inc.

Victim entityMedusind, Inc.

Incidentdiscovered Dec 29, 2023

Stated responseTook the affected systems offline

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.maryland.gov