MalwareHealthcareFinancial ServicesHealthcareRansomwarePhishingData ExfiltratedData EncryptedCustomer Data InvolvedEmployee Data InvolvedRansom DemandedGovernment IDFinancial accountHealth (basic)Identity (basic)HighContained

Magellan Health

bd_c2e0d6a5d0abe09d · schema v1 · pii pii-v1

Severity

High

Discovered

Apr 11, 2020

Filed

Jun 17, 2020

To disclose

10 weeks

Affected

2,465state residents only

Linked

13 filings

Confidence

65%

Full breach record for Magellan Health →6 incidents on file

Magellan Health Inc. filed a supplemental notice with the New Hampshire Attorney General regarding a ransomware attack. The incident occurred between April 6 and April 12, 2020, initiated by a phishing email. ProLock malware was deployed, leading to data exfiltration from a corporate finance server and employee email boxes. Approximately 2,465 New Hampshire residents were affected. Exposed data included SSNs, financial information, and PHI (names, treatment info, member IDs). Magellan engaged Mandiant for forensics and implemented enhanced security controls.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 5 days

discovery → filing · 10 weeks / 67 days

Apr 6, 2020

Begins

Apr 11, 2020

Discovered

Jun 17, 2020

Filed

vs. sector median

1 wks faster

This filing is one of 13 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Delaware State AGbd_fb92e6e29105fd362020-06-15 · +2dVerified by operator
California State AGbd_34de5bda8012b71c2020-06-12 · +5dVerified
HHS OCRbd_8bced8d5ed3979b92020-06-12 · +5dVerified
HHS OCRbd_d5286c2b411200662020-06-12 · +5dVerified by operator

Show 6 more filings ↓up to 37d gap

New Hampshire State AGbd_52cdccf8ed184c492020-05-18 · +30dVerified by operator
South Carolina State AGbd_9e737f4798eb5a362020-05-12 · +36dVerified
Oregon State AGbd_5bd5952fe83a40242020-05-11 · +37dCandidate
California State AGbd_ab19fc861c82e8262020-05-11 · +37dVerified
Montana State AGbd_ae473065eafe43122020-05-11 · +37dVerified
Massachusetts State AGbd_bf8c076cce5b21132020-05-11 · +37dVerified

Showing first 10 of 12 linked disclosures.

Name: Norton Rose Fulbright US LLP
norm: norton rose fulbright us

Name: Magellan Health
norm: magellan health
Domain: magellanhealth.com
Industry: HealthcarellmFinancial Servicesllm

Discovered: Apr 11, 2020
Breach occurred: Apr 6, 2020 – Apr 12, 2020
Undetected for: 5 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 15, 2020
Affected individuals: 2,465state-resident count only
Data types: Government IDFinancial accountHealth (basic)Identity (basic)
Data elements: Social Security numberDate of birthMedical information
Attack vector: Ransomware
MITRE ATT&CK: T1566.002 Spearphishing LinkT1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 ChannelT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: Providing supplemental notice to the New Hampshire Office of the Attorney GeneralProviding supplemental notice to Departments of Insurances and Boards of Pharmacy in several statesWill notify the United States Department of Health and Human Services Office for Civil Rights pursuant to HIPAA
Initial access: phishing_link

During the incident: Retained Mandiant to help conduct a thorough investigation
Reported the incident to appropriate law enforcement authorities, including the FBI
Onboarded Mandiant's Managed Defense, a 24/7 managed detection and response (MDR) service utilizing FireEye endpoint security agent for investigation, containment, and monitoring
Deployed additional FireEye Network Security network monitoring devices
Enhanced and enforced additional endpoint security controls through group policy
Ongoing twice-weekly vulnerability scans of Magellan's external IP address space
Deployed FireEye Email Threat Protection and Proofpoint for enhanced email protection
Implemented network firewall rule changes including blocking IP addresses and domains associated with the attack
Implemented DNS sink holes for malicious domains
Reviewed site-to-site VPN firewall rules for any direct connections into the Magellan network
Reduced number of privileged domain user accounts
Enhanced Active Directory, Domain Administrator, and Domain Controller Security through Group Policy and related Active Directory features
Forced Password Reset
Changes made: Conducting an enterprise security assessment in the near term to further develop security roadmap
Implementing additional measures to improve security
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(67 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 9 states

View merged incident ↗

Oregon State AGMay 11 · first

California State AGMay 11 · first

Montana State AGMay 11 · first

Massachusetts State AGMay 11 · first

South Carolina State AG+1d

New Hampshire State AG+7d

California State AG+32d

HHS OCR+32d

Delaware State AG+35d

New Hampshire State AG+37d · this page

Pattern: first filing May 11 (OR), last Jun 17 (NH) — a 37-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 12 — the full spread may be wider.

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://mm.nh.gov/files/uploads/doj/remote-docs/magellan-health-20200617.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 17, 2020
Raw hash: 29a298c5660dbc2484dff9856619d6b7b5f4e6e195fbdf02aeba9699e611cf6b

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityNorton Rose Fulbright US LLP

Victim entityMagellan Health

Incidentdiscovered Apr 11, 2020

Stated responseRetained Mandiant to help conduct a thorough investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov