HackingFinancial ServicesFinanceStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDPIIMediumContained

Guideline, Inc

bd_85c65bd0a3ac3362 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 30, 2023

Filed

Jun 6, 2023

To disclose

10 weeks

Affected

1state residents only

Linked

2 filings

Confidence

66%

Full breach record for Guideline, Inc →3 incidents on file

Guideline, Inc notified Montana residents of a data breach on March 30, 2023, where attackers used stolen credentials to access accounts. Exposed data included names, emails, DOB, addresses, and partial SSNs. Guideline blocked access, reported to the FBI, and offered 12 months of identity monitoring.

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Incident timeline

discovery → filing · 10 weeks / 68 days

Mar 30, 2023

Begins

Mar 30, 2023

Discovered

Jun 6, 2023

Filed

vs. sector median

+1 wks slower

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_1d6194974f0fa0072023-06-06Verified

Name: Guideline, Inc
norm: guideline

Name: Guideline, Inc
norm: guideline
Industry: Financial Servicesllm

Discovered: Mar 30, 2023
Breach occurred: Mar 30, 2023
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 5, 2023
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDPII
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: reported this activity to the FBI
Initial access: valid_credentials

During the incident: Activated defenses and blocked any online access to your Guideline account
Reported this activity to the FBI
Arranged a service to monitor your and your beneficiary’s identity for twelve (12) months at no cost to you
Changes made: Enable multi-factor authentication when available
Use unique, strong passwords for every online account
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(68 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Massachusetts State AGJun 6 · first

Montana State AGJun 6 · 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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-336.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 6, 2023
Raw hash: 83d9c73606df539bbf2fadae97d65a4698028ecfd30afdbe833d53ab0e735a21

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityGuideline, Inc

Victim entityGuideline, Inc

Incidentdiscovered Mar 30, 2023

Stated responseActivated defenses and blocked any online access to your Guideline account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov