HackingEducationEducationPhishingStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedMulti-Stage ChainAuthenticationCredentialsFinancial accountHealth (basic)Identity (basic)Government IDPHIHighContained

Puget Sound Educational Service District

bd_fb3ddce75a837fcb · schema v1 · pii pii-v1

Severity

High

Discovered

Jul 25, 2020

Filed

Jan 26, 2021

To disclose

26 weeks

Affected

32,419state residents only

Linked

3 filings

Confidence

71%

Full breach record for Puget Sound Educational Service District →

Puget Sound Educational Service District (PSESD) notified Washington AG of a phishing-induced compromise of employee email accounts. Unauthorized access occurred between April 5 and August 6, 2020. PSESD discovered the incident on July 25, 2020, and notified 32,419 Washington residents on January 26, 2021. Data exposed included names, SSNs, DOBs, medical/insurance info, financial account data, and credentials.

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Washington clock✗ WA AG >90d26 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 111 days

discovery → filing · 26 weeks / 185 days

Apr 5, 2020

Begins

Jul 25, 2020

Discovered

Jan 26, 2021

Filed

vs. sector median

+18 wks slower

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_5adb187c02d3facd2021-01-26Verified
Montana State AGbd_a998de50c4ade5ca2021-01-26Candidate

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: Puget Sound Educational Service District
norm: puget sound educational service district
Industry: Educationllm

Discovered: Jul 25, 2020
Breach occurred: Apr 5, 2020 – Aug 6, 2020
Undetected for: 111 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 26, 2021
Affected individuals: 32,419state-resident count only
Data types: AuthenticationCredentialsFinancial accountHealth (basic)Identity (basic)Government IDPHI
Data elements: NameSocial Security numberFinancial account numberDate of birthUnique private keyHealth insurance IDMedical informationUsername + password
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 100-199dexposure 100-199d
WA-stated discovery: Found while ongoing
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: External
Regulator citations: Notified Office of the Attorney General (Washington)
Initial access: phishing_link

During the incident: Took portions of its network offline
Commenced an investigation into the event
Working with third-party computer forensic specialists
Conducted an extensive review of all messages and documents
Notified federal law enforcement
Provided access to credit monitoring services for twelve (12) months, from TransUnion (through Epiq)
Changes made: Continues to evaluate ways to improve its existing protections to secure the information within its network
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 26 weeks(185 days from discovery to filing)
Compliance flags: WA AG >90d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Massachusetts State AGJan 26 · first

Montana State AGJan 26 · first

Washington State AGJan 26 · 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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachM10397.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 26, 2021
Raw hash: 37145d0d42b1eb0bc9e5253b92b7aaba95087caa04d9539d8ae1f0e5186d442e

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityPuget Sound Educational Service District

Incidentdiscovered Jul 25, 2020

Stated responseTook portions of its network offline

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com