MalwareHealthcareHealthcareRansomwareCapture Stored DataData ExfiltratedData EncryptedCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDHealth (basic)Financial accountMediumContained

AKUMIN OPERATING CORP.

bd_31930fb683ccf8b8 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 11, 2023

Filed

Dec 23, 2024

To disclose

15 months

Affected

442state residents only

Linked

7 filings

Confidence

65%

Full breach record for AKUMIN OPERATING CORP. →5 incidents on file

Akumin, Inc. disclosed a ransomware incident in October 2023 where malware encrypted files and data was exfiltrated. Affected data included names, addresses, SSNs, DOBs, medical records, and payment card info. Notification letters were mailed December 23, 2024.

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Incident timeline

discovery → filing · 15 months / 439 days

Oct 11, 2023

Begins

Oct 11, 2023

Discovered

Dec 23, 2024

Filed

vs. sector median

+54 wks slower

This filing is one of 7 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

Indiana State AGbd_647223fbc4b0f6c62024-12-23Verified
California State AGbd_db7efd6c0c4d9e1a2024-12-23Verified
Washington State AGbd_e16c383f2f31d7722024-12-23Verified
Vermont State AGbd_eb1cfb9c9e6261dc2024-12-23Verified

Show 2 more filings ↓up to 4d gap

New Hampshire State AGbd_ee2355bc545555b42024-12-23Verified
South Carolina State AGbd_9341eb013fc58c2e2024-12-27 · +4dVerified

Name: AKUMIN OPERATING CORP.
norm: akumin operating

Name: AKUMIN OPERATING CORP.
norm: akumin operating
Industry: Healthcarellm

Discovered: Oct 11, 2023
Breach occurred: Oct 11, 2023
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 23, 2024
Affected individuals: 442state-resident count only
Data types: Identity (basic)Government IDHealth (basic)Financial account
Data elements: Social Security numberDate of birthMedical information
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: notified certain law enforcement and other governmental authorities

During the incident: Began an investigation
Notified certain law enforcement and other governmental authorities
Took measures to contain and assess the incident
Taking our systems offline until we were able to securely restore them
Published information about this incident on our website
Published formal notification on our website
Began issuing rolling notification letters
Undertook an intensive review of those files
Implemented additional technical measures and processes to further enhance the company’s security
Changes made: Implemented additional technical measures and processes to further enhance the company’s security
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 months(439 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 7 states

View merged incident ↗

Indiana State AGDec 23 · first

California State AGDec 23 · first

Washington State AGDec 23 · first

Vermont State AGDec 23 · first

New Hampshire State AGDec 23 · first

Montana State AGDec 23 · first · this page

South Carolina State AG+4d

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://dojmt.gov/wp-content/uploads/2025/03/Consumer-notification-letter-124.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 23, 2024
Raw hash: ae0e2169d655f19ae275657a1d6821f5297e4e3a895bb43da4e0d4c785aafaf3

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityAKUMIN OPERATING CORP.

Victim entityAKUMIN OPERATING CORP.

Incidentdiscovered Oct 11, 2023

Stated responseBegan an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov