MalwareHealthcareHealthcareRansomwarePhishingStolen CredentialsData ExfiltratedMulti-Stage ChainEmployee Data InvolvedIdentity (basic)Government IDFinancial accountCredentialsEmploymentMediumContained

Magellan Health

bd_ab19fc861c82e826 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 11, 2020

Filed

May 11, 2020

To disclose

4 weeks

Affected

Not disclosed

Linked

13 filings

Confidence

64%

Full breach record for Magellan Health →6 incidents on file

Magellan Health, Inc. disclosed a ransomware attack discovered on April 11, 2020. An unauthorized actor gained access via a phishing email sent on April 6, 2020, exfiltrated data from a corporate server, and deployed ransomware. Affected data included names, addresses, employee IDs, W-2/1099 details (including SSNs), and in limited cases, usernames and passwords. The company engaged Mandiant for forensics, notified the FBI, and offered three years of identity monitoring.

J jump to incidentP pin to compareR raw source

California clockDiscovered Apr 11, 2020 → Notified May 12, 202031d ✓ CA 60-day OK4 weeks discovery → filing

Incident timeline

undetected · 5 days

discovery → filing · 4 weeks / 30 days

Apr 6, 2020

Begins

Apr 11, 2020

Discovered

May 11, 2020

Filed

vs. sector median

7 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

Oregon State AGbd_5bd5952fe83a40242020-05-11Candidate
Montana State AGbd_ae473065eafe43122020-05-11Verified
Massachusetts State AGbd_bf8c076cce5b21132020-05-11Verified
South Carolina State AGbd_9e737f4798eb5a362020-05-12 · +1dVerified

Show 6 more filings ↓up to 37d gap

New Hampshire State AGbd_52cdccf8ed184c492020-05-18 · +7dVerified by operator
California State AGbd_34de5bda8012b71c2020-06-12 · +32dVerified
HHS OCRbd_8bced8d5ed3979b92020-06-12 · +32dVerified
HHS OCRbd_d5286c2b411200662020-06-12 · +32dVerified by operator
Delaware State AGbd_fb92e6e29105fd362020-06-15 · +35dVerified by operator
New Hampshire State AGbd_c2e0d6a5d0abe09d2020-06-17 · +37dVerified

Showing first 10 of 12 linked disclosures.

Name: Magellan Health
norm: magellan health
Domain: magellanhealth.com

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

Discovered: Apr 11, 2020
Breach occurred: Apr 6, 2020 – Apr 12, 2020
Undetected for: 5 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 12, 2020
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial accountCredentialsEmployment
Data elements: Social Security number
Attack vector: Ransomware
MITRE ATT&CK: T1566.002 Spearphishing LinkT1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 ChannelT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Reported the incident to the FBI
Initial access: phishing_link

During the incident: Retained a leading cybersecurity forensics firm, Mandiant, to help conduct a thorough investigation of the incident
Reported the incident to, and is working closely with, the appropriate law enforcement authorities, including the FBI
Implemented additional security protocols designed to protect our network, email environment, systems, and personal information
Changes made: Offering a complimentary three-year membership of Experian’s IdentityWorks
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(30 days from discovery to filing)
Compliance flags: CA 60-day OK · 31d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Apr 11, 2020
→ Notified: May 12, 2020
31d 60 days (analyst band, pre-2026 discoveries) CA 60-day OK

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Apr 11, 2020 → Notified: May 12, 2020	31d	60 days (analyst band, pre-2026 discoveries)	CA 60-day OK

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 9 states

View merged incident ↗

Oregon State AGMay 11 · first

Montana State AGMay 11 · first

Massachusetts State AGMay 11 · first

California State AGMay 11 · first · this page

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

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://oag.ca.gov/ecrime/databreach/reports/sb24-189886
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 11, 2020
Raw hash: a88c34d54be1eb3e6deef4d74cdaf6ff19669d44d2c6ddc96e2e9f09ddd8759a

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityMagellan Health

Victim entityMagellan Health

Incidentdiscovered Apr 11, 2020

Stated responseRetained a leading cybersecurity forensics firm, Mandiant, to help conduct a thorough investigation of the incident

ComplianceCA 60-day OK

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov