HackingFinancial ServicesTechnologyFinanceStolen CredentialsPhishingMulti-Stage ChainCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDFinancial accountMediumContained

CVS HEALTH CORPORATION

bd_dc8cb8248b2781d9 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 8, 2019

Filed

Sep 3, 2019

To disclose

8 weeks

Affected

1state residents only

Confidence

67%

Full breach record for CVS HEALTH CORPORATION →8 incidents on file

TALX Corporation, a subsidiary of Equifax, provided a supplemental notification to the New Hampshire Attorney General regarding a security incident affecting CVS Health employees. On July 8, 2019, TALX discovered that an unauthorized individual accessed the account of one NH resident, potentially viewing their 2015 W-2 form. The access occurred on December 10, 2016, via Knowledge-Based Authentication (KBA) bypass. TALX has implemented MFA and fraud prevention tools.

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Incident timeline

undetected · 940 days

discovery → filing · 8 weeks / 57 days

Dec 10, 2016

Begins

Jul 8, 2019

Discovered

Sep 3, 2019

Filed

vs. sector median

on median

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: TALX
norm: talx

Name: CVS HEALTH CORPORATION
norm: cvs health
Domain: cvshealth.com
Industry: Financial ServicesllmTechnologyllm

Discovered: Jul 8, 2019
Breach occurred: Dec 10, 2016
Undetected for: 940 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: Provided supplemental incident notification to the New Hampshire Attorney General
Initial access: valid_credentials

During the incident: Conducted an investigation
Implemented additional authentication and security measures
Altered its KBA to increase the difficulty of passing KBA
Implemented iOvation's fraud prevention tool to block known suspicious IP addresses
Worked with CVS Health to alter the authentication methods used by CVS Health's employees
Instituted a new authentication platform requiring multi-factor authentication
Notified the Attorney General
Notified affected individuals via U.S. mail
Offered 24 months of ID Patrol identity protection service
Changes made: Altered its KBA to increase the difficulty of passing KBA
Implemented iOvation's fraud prevention tool to block known suspicious IP addresses as well as connections with other suspicious characteristics
Instituted a new authentication platform requiring multi-factor authentication
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(57 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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/talx-corporation-20190923.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 3, 2019
Raw hash: 975276ab7ce95b7ad4e9720cf60f5a3995ee24ece3c62a741103aeb0765cb2a8

Reporting entityTALX

Victim entityCVS HEALTH CORPORATION

Incidentdiscovered Jul 8, 2019

Stated responseConducted an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov