MisuseFinancial ServicesFinancePrivilege AbuseEmployee Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Capital One, National Association

bd_91c5678ce357d5df · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 20, 2017

Filed

Jul 31, 2017

To disclose

15 weeks

Affected

4state residents only

Confidence

65%

Full breach record for Capital One, National Association →24 incidents on file

Capital One Services, LLC notified Montana residents that a former employee accessed personal information between Jan 27 and Apr 20, 2017. Data included names, addresses, account numbers, DOB, and SSNs. Law enforcement was notified, the employee was terminated, and 2 years of credit monitoring were offered.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 83 days

discovery → filing · 15 weeks / 102 days

Jan 27, 2017

Begins

Apr 20, 2017

Discovered

Jul 31, 2017

Filed

vs. sector median

+5 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed4 affectedView incident

Name: Capital One, National Association
norm: capital one national

Name: Capital One, National Association
norm: capital one national
Industry: Financial Servicesllm

Discovered: Apr 20, 2017
Breach occurred: Jan 27, 2017 – Apr 20, 2017
Undetected for: 83 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 31, 2017
Affected individuals: 4state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Insider
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: Internal
Regulator citations: Notified law enforcement
Initial access: insider_action

During the incident: Notified law enforcement
Former employee is no longer with the company
Arranged for two years of TransUnion credit monitoring service
Provided fraud prevention tools and tips
Changes made: Taking other steps to prevent this kind of event in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 weeks(102 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://dojmt.gov/wp-content/uploads/Capital-One-1.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 31, 2017
Raw hash: cce650a7da647fee36bd231e2d61bf57a14ccf280f7eb797d059ea9311999ed5

Reporting entityCapital One, National Association

Victim entityCapital One, National Association

Incidentdiscovered Apr 20, 2017

Stated responseNotified law enforcement

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov