HackingHealthcareFinancial ServicesHealthcareDelayed DiscoveryCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountHealth (basic)PHIHighContained

Premera Blue Cross

bd_13935cd688d3ab10 · schema v1 · pii pii-v1

Severity

High

Discovered

Jan 29, 2015

Filed

Mar 24, 2015

To disclose

8 weeks

Affected

19,174state residents only

Linked

8 records

Confidence

65%

Full breach record for Premera Blue Cross →7 incidents on file

Premera Blue Cross notified Hawaii regulators of a cyberattack where unauthorized access to IT systems occurred on May 5, 2014, and was discovered on January 29, 2015. Attackers may have accessed names, SSNs, DOBs, bank accounts, and clinical data. Premera engaged Mandiant for investigation, notified the FBI, and began notifying affected individuals on March 17, 2015, offering two years of credit monitoring.

J jump to incidentP pin to compareR raw source

Hawaii clock✓ HI CRA notice due8 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 269 days

discovery → filing · 8 weeks / 54 days

May 5, 2014

Begins

Jan 29, 2015

Discovered

Mar 24, 2015

Filed

vs. sector median

1 wks faster

This filing is one of 8 records about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

New Hampshire State AGbd_69d72a8fe88cec392015-03-27 · +3dVerified
South Carolina State AGbd_9ec8af423fb684d52015-03-19 · +5dVerified
Massachusetts State AGbd_de2d028bf0408dea2015-03-18 · +6dVerified
HHS OCRbd_9a804b5de84dfb072015-03-17 · +7dVerified

Show 2 more filings ↓up to 7d gap

California State AGbd_e8e76c27f5c889f62015-03-17 · +7dCandidate
New Hampshire State AGbd_f653fc0c8376c8532015-03-17 · +7dVerified

Enforcement records (1)

HHS OCR enforcementbd_d2050db6681c56222020-09-25 · +2012dVerified by operator

Name: BakerHostetler LLP
norm: bakerhostetler
Domain: premera.com

Name: Premera Blue Cross
norm: premera blue cross
Domain: premera.com
Industry: HealthcarellmFinancial Servicesllm

Discovered: Jan 29, 2015
Breach occurred: May 5, 2014
Undetected for: 269 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 17, 2015
Affected individuals: 19,174state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PHI
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified Hawaii Office of Consumer ProtectionNotified the FBI
Initial access: exploit_public_facing

During the incident: Worked closely with Mandiant to conduct its investigation and to remove the infection created by the attack on its IT systems
Notified the FBI and continues to work closely with the agency on its investigation
Began to notify individuals affected by the incident on March 17, 2015
Offering affected individuals two years of complimentary credit monitoring and identity theft protection services through Experian
Providing call center support for those affected
Changes made: Cleansed its IT systems of the issues raised by this cyberattack
Taking additional actions to strengthen and enhance the security of its IT systems moving forward
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(54 days from discovery to filing)
Compliance flags: HI CRA notice due
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 6 states

View merged incident ↗

HHS OCRMar 17 · first

California State AGMar 17 · first

New Hampshire State AGMar 17 · first

Massachusetts State AG+1d

South Carolina State AG+2d

Hawaii State AG+7d · this page

New Hampshire State AG+10d

Pattern: first filing Mar 17 (WA), last Mar 27 (NH) — a 10-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://web.archive.org/web/20211024101019id_/https://cca.hawaii.gov/ocp/files/2015/12/OCP-2015-0207.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 24, 2015
Raw hash: 79f84e928929ced259fd2dc308311b7e11b66cdb60031e1c5f42b93b3e4fc649

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Enforcement records (1)

Reporting entityBakerHostetler LLP

Victim entityPremera Blue Cross

Incidentdiscovered Jan 29, 2015

Stated responseWorked closely with Mandiant to conduct its investigation and to remove the infection created by the attack on its IT systems

ComplianceHI CRA notice due

Extraction provenanceno artifact recorded

Source provenanceweb.archive.org