HackingEducationEducationData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Kalamazoo Public School District

bd_99ca09d419e04b37 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 30, 2025

Filed

Jul 8, 2025

To disclose

10 weeks

Affected

2state residents only

Linked

7 records

Confidence

66%

Full breach record for Kalamazoo Public School District →

Kalamazoo Public Schools reported an external system breach (hacking) on April 30, 2025, affecting 2 Maine residents. Personal information including names and government identifiers was potentially copied. The school contained the network, engaged outside cybersecurity professionals, and notified affected individuals on July 8, 2025, offering 12 months of identity theft protection.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Apr 30, 2025 → Filed with AG Jul 8, 202569d ⏱ ME AG >30d10 weeks discovery → filing

⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Incident timeline

discovery → filing · 10 weeks / 69 days

Apr 30, 2025

Begins

Apr 30, 2025

Discovered

Jul 8, 2025

Filed

This filing is one of 7 records about the same incident.View merged incident

A leak claim by interlock about this victim was first seen 46 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteinterlockbd_f567ff1c3033890f2025-04-26 · +73dCandidate

Regulatory filings (4) · sorted by filing gap

Indiana State AGbd_180cbfe964e43c952025-07-08Verified
Nebraska State AGbd_4b1ca388bd35c3502025-07-08Verified
Massachusetts State AGbd_caa9e0fafef090d02025-07-08Verified by operator
New Hampshire State AGbd_f5709505866f188c2025-07-14 · +6dVerified

Press reports (1)

Pressinterlockbd_d7c0b14eff07b85e2025-04-30 · +69dCandidate

Name: Kalamazoo Public School District
norm: kalamazoo public school district
Domain: kalamazoopublicschools.com

Name: Kalamazoo Public School District
norm: kalamazoo public school district
Domain: kalamazoopublicschools.com
Industry: Educationllm

Discovered: Apr 30, 2025
Breach occurred: Apr 30, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 8, 2025
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Filed notification with Maine Attorney General
Initial access: exploit_public_facing

During the incident: Took immediate steps to securely contain our network
Restored our systems
Launched an immediate investigation in consultation with outside cybersecurity professionals
Providing access to complimentary services through Epiq - Privacy Solutions ID
Changes made: Continually evaluates and modifies its practices and internal controls to enhance the security and privacy of your information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(69 days from discovery to filing)
Compliance flags: ME AG >30d · 69dLeak >30d
Discovery-date grounding: occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Apr 30, 2025
→ Filed with AG: Jul 8, 2025
69d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Apr 30, 2025 → Filed with AG: Jul 8, 2025	69d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Indiana State AGJul 8 · first

Nebraska State AGJul 8 · first

Massachusetts State AGJul 8 · first

Maine State AGJul 8 · first · this page

New Hampshire State AG+6d

Pattern: first filing Jul 8 (IN), last Jul 14 (NH) — a 6-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/a227ebae-c41d-4b42-9b3d-742c45724a25.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 8, 2025
Raw hash: c36c7a69766425c11fa67d404f66f1bbcffa65595f89f0f99a380750ad56b47c

Linked disclosures

Ransomware claims (1)

Regulatory filings (4) · sorted by filing gap

Press reports (1)

Reporting entityKalamazoo Public School District

Victim entityKalamazoo Public School District

Incidentdiscovered Apr 30, 2025

Stated responseTook immediate steps to securely contain our network

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov