Social EngineeringOtherPhishingStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDMediumContained

Los Angeles Philharmonic Association

bd_8591916249422eda · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 16, 2020

Filed

Mar 4, 2021

To disclose

11 weeks

Affected

4state residents only

Linked

4 filings

Confidence

65%

Full breach record for Los Angeles Philharmonic Association →2 incidents on file

Los Angeles Philharmonic Association notified Montana AG of unauthorized access to an employee email account between Dec 3-16, 2020. Data potentially included names, addresses, DOBs, passport numbers, and SSNs. The organization engaged forensic investigators, contacted law enforcement, and offered credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 13 days

discovery → filing · 11 weeks / 78 days

Dec 3, 2020

Begins

Dec 16, 2020

Discovered

Mar 4, 2021

Filed

vs. sector median

+3 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Maine State AGbd_282b96e74c1f8e612021-03-04Candidate
California State AGbd_d3aced5b2d4a77f62021-03-04Verified
Massachusetts State AGbd_e4fd50ae64aab62e2021-03-04Verified

Name: Los Angeles Philharmonic Association
norm: los angeles philharmonic

Name: Los Angeles Philharmonic Association
norm: los angeles philharmonic
Industry: Otherllm

Discovered: Dec 16, 2020
Breach occurred: Dec 3, 2020 – Dec 16, 2020
Undetected for: 13 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 1, 2021
Affected individuals: 4state-resident count only
Data types: Identity (basic)Government ID
Data elements: Date of birth
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: contacted law enforcement
Initial access: phishing_link

During the incident: Took measures to secure the email account
Contacted law enforcement
Launched an internal investigation
Engaged a cybersecurity firm to assist in a full forensic analysis
Performed a comprehensive review of the mailboxes
Offering a complimentary membership of Experian’s IdentityWorks
Changes made: Taken additional steps to enhance our existing electronic security protocols
Re-educate our staff for awareness on these types of incidents
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 11 weeks(78 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Maine State AGMar 4 · first

California State AGMar 4 · first

Massachusetts State AGMar 4 · first

Montana State AGMar 4 · 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/philSamp.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 4, 2021
Raw hash: 16bd8e98620feba3e0380377e257f23cdcf1ef2e12b23c9a812c0e0711898a49

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityLos Angeles Philharmonic Association

Victim entityLos Angeles Philharmonic Association

Incidentdiscovered Dec 16, 2020

Stated responseTook measures to secure the email account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov