MisuseFinancial ServicesFinancePrivilege AbuseEmployee Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Capital One Services, LLC

bd_327ae55ea86a448f · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 20, 2017

Filed

Sep 12, 2017

To disclose

21 weeks

Affected

4state residents only

Confidence

63%

Capital One Services, LLC notified Montana residents that a former employee accessed Capital One 360 account information between Jan 27 and Apr 20, 2017. Compromised data included names, addresses, account numbers, DOBs, and SSNs. The employee was terminated, law enforcement was notified, and two years of credit monitoring were offered.

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Incident timeline

undetected · 83 days

discovery → filing · 21 weeks / 145 days

Jan 27, 2017

Begins

Apr 20, 2017

Discovered

Sep 12, 2017

Filed

vs. sector median

+11 wks slower

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

Name: CAPITAL ONE SERVICES, LLC
norm: capital one
Domain: capitalone.com

Name: Capital One Services, LLC
norm: capital one services
Domain: capitalone.co.uk
Industry: Financial Servicesllm

Discovered: Apr 20, 2017
Breach occurred: Jan 27, 2017 – Apr 20, 2017
Undetected for: 83 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 12, 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
Terminated the former employee
Arranged for two years of TransUnion credit monitoring service
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: 21 weeks(145 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-2-1.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 12, 2017
Raw hash: 7f4d588837949da767bae3aaea5a388117e104470db08dc8e94615a70d2615ce

Reporting entityCAPITAL ONE SERVICES, LLC

Victim entityCapital One Services, LLC

Incidentdiscovered Apr 20, 2017

Stated responseNotified law enforcement

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov