HackingHealthcareFinancial ServicesHealthcareStolen CredentialsCustomer Data InvolvedData ExfiltratedIdentity (basic)Government IDCriticalContained

CareFirst Blue Cross Blue Shield

bd_a170a3c85daf2049 · schema v1 · pii pii-v1

Severity

Critical

Discovered

Apr 21, 2015

Filed

May 20, 2015

To disclose

29 days

Affected · nationwide

1,100,0007 in this filing

Linked

3 filings

Confidence

65%

Full breach record for CareFirst Blue Cross Blue Shield →5 incidents on file

CareFirst BlueCross BlueShield notified the NH AG of a cyberattack discovered April 21, 2015, involving unauthorized access to a broker database on June 19, 2014. Attackers potentially acquired broker names, SSNs, and usernames. 1.1 million individuals affected nationwide; 7 NH residents. No passwords or financial/medical data accessed. Credit monitoring offered.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 306 days

discovery → filing · 29 days

Jun 19, 2014

Begins

Apr 21, 2015

Discovered

May 20, 2015

Filed

vs. sector median

8 wks faster

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

HHS OCRbd_693df094849cb1ad2015-05-20Verified
California State AGbd_d3530dd6d928135a2015-05-20Verified

Name: CareFirst Blue Cross Blue Shield
norm: carefirst blue cross blue shield
Domain: carefirst.com

Name: CareFirst Blue Cross Blue Shield
norm: carefirst blue cross blue shield
Domain: carefirst.com
Industry: HealthcarellmFinancial Servicesllm

Discovered: Apr 21, 2015
Breach occurred: Jun 19, 2014
Undetected for: 306 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 27, 2015
Affected individuals: 1,100,000state + nationwide
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Office of the Attorney General
Initial access: valid_credentials

During the incident: Engaged Mandiant to conduct an end-to-end assessment of IT environment
Notified Experian, Equifax and TransUnion of the incident
Provided affected brokers with opportunity to enroll for two years of credit monitoring at CareFirst’s expense
Sent notification letters to affected brokers
Changes made: Provided two years of free credit monitoring and identity theft protection services through Experian’s ProtectMyID Alert
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 29 days(29 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

HHS OCRMay 20 · first

California State AGMay 20 · first

New Hampshire State AGMay 20 · first · this page

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/carefirst-20150520.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 20, 2015
Raw hash: 5469d904c2e1fc2f084cf85dada038ef989109983ee18280b174f1b543a494fc

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityCareFirst Blue Cross Blue Shield

Victim entityCareFirst Blue Cross Blue Shield

Incidentdiscovered Apr 21, 2015

Stated responseEngaged Mandiant to conduct an end-to-end assessment of IT environment

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov