HackingEducationEducationStolen CredentialsCapture Stored DataData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDHighContained

STRATEGIC EDUCATION, INC.

bd_cb4c9619494a59ad · schema v1 · pii pii-v1

Severity

High

Discovered

Feb 25, 2026

Filed

Jun 1, 2026

To disclose

14 weeks

Affected

14,112state residents only

Linked

13 filings

Confidence

69%

Full breach record for STRATEGIC EDUCATION, INC. →

Strategic Education Inc. reported a cyberattack where an unauthorized actor accessed its network between Feb 23-25, 2026, exfiltrating files containing names and government IDs (SSN, driver's license, passport) of ~14,112 Washington residents. SEI secured the network, investigated, and began notifying affected individuals on May 29, 2026, offering Kroll identity monitoring.

J jump to incidentP pin to compareR raw source

Washington clock✗ WA AG >90d14 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 · 2 days

discovery → filing · 14 weeks / 96 days

Feb 23, 2026

Begins

Feb 25, 2026

Discovered

Jun 1, 2026

Filed

vs. sector median

+7 wks slower

This filing is one of 13 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Illinois State AGbd_0b8fdcb25259cb4d2026-06-01Verified
Oregon State AGbd_28bb6ee0982b4f632026-06-01Candidate
California State AGbd_5d13c45fb525d6512026-06-01Verified
Vermont State AGbd_8aaceaf2f3381fb42026-06-01Verified

Show 6 more filings ↓up to 1d gap

Massachusetts State AGbd_a8a2a510a2084c902026-06-01Verified
New Hampshire State AGbd_d77c7602660c3ca52026-06-01Verified
Maine State AGbd_dcab2736031a38562026-06-01Verified
Iowa State AGbd_f43a83a0e648c3962026-06-01Verified
Texas State AGbd_9afb0dab02b16f5a2026-06-02 · +1dVerified
South Carolina State AGbd_b8233d0d40ac3c3d2026-06-02 · +1dVerified

Showing first 10 of 12 linked disclosures.

Name: STRATEGIC EDUCATION, INC.
norm: strategic education

Name: STRATEGIC EDUCATION, INC.
norm: strategic education
Industry: Educationllm

Discovered: Feb 25, 2026
Breach occurred: Feb 23, 2026 – Feb 25, 2026
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 29, 2026
Affected individuals: 14,112state-resident count only
Data types: Identity (basic)Government ID
Data elements: NameSocial Security numberDriver's licence numberPassport number
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated CollectionT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial

During the incident: Secured its network
Commenced an investigation
Reviewed the files involved
Began mailing notification letters via United States Postal Service First-Class mail
Provided the phone number of its toll-free call center
Provided notified individuals with an offer of identity monitoring services through Kroll
Changes made: Taking steps to enhance its existing security measures
Implemented additional measures to enhance the security of its IT network
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 14 weeks(96 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 · 11 filings · 11 states

View merged incident ↗

Illinois State AGJun 1 · first

Oregon State AGJun 1 · first

California State AGJun 1 · first

Vermont State AGJun 1 · first

Massachusetts State AGJun 1 · first

New Hampshire State AGJun 1 · first

Maine State AGJun 1 · first

Iowa State AGJun 1 · first

Washington State AGJun 1 · first · this page

Texas State AG+1d

South Carolina State AG+1d

Cascade drawn from the first 10 linked disclosures of 12 — the full spread may be wider.

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/BreachA41155.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 1, 2026
Raw hash: 5edd037437c1d398a4c03515a1854ea9304e2e83969850459eac2053b81a868f

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entitySTRATEGIC EDUCATION, INC.

Victim entitySTRATEGIC EDUCATION, INC.

Incidentdiscovered Feb 25, 2026

Stated responseSecured its network

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com