HackingEducationEducationData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)HighContained

SEK Interlocal #637

bd_1bebcd9bc387bdd9 · schema v1 · pii pii-v1

Severity

High

Discovered

Oct 19, 2021

Filed

Oct 29, 2021

To disclose

10 days

Affected · nationwide

1,0221 in this filing

Confidence

66%

Full breach record for SEK Interlocal #637 →

SEK Interlocal #637, an education entity based in Kansas, reported a breach occurring between May 6, 2021, and June 12, 2021. The incident involved an external system breach (hacking) resulting in the exposure of names and Social Security Numbers for 1,022 individuals, including one Maine resident. Discovered on October 19, 2021, the entity provided written notification and offered one year of credit monitoring through Equifax.

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Maine clockDiscovered Oct 19, 2021 → Filed with AG Oct 29, 202110d ✓ ME AG ≤30d10 days 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 · 166 days

discovery → filing · 10 days

May 6, 2021

Begins

Oct 19, 2021

Discovered

Oct 29, 2021

Filed

vs. sector median

6 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1,022 affectedView incident

Name: SEK Interlocal #637
norm: sek interlocal 637

Name: SEK Interlocal #637
norm: sek interlocal 637
Industry: Educationllm

Discovered: Oct 19, 2021
Breach occurred: May 6, 2021 – Jun 12, 2021
Undetected for: 166 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 29, 2021
Affected individuals: 1,022state + nationwide
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: exploit_public_facing

During the incident: Sent written notification to affected individuals
Offered 1 year of credit monitoring and identity theft protection services through Equifax
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 days(10 days from discovery to filing)
Compliance flags: ME AG ≤30d · 10d
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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Oct 19, 2021
→ Filed with AG: Oct 29, 2021
10d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Oct 19, 2021 → Filed with AG: Oct 29, 2021	10d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

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-a1252b4f8318/1da0f219-d19b-4ea3-bb5f-27409a893c25.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 29, 2021
Raw hash: 3e761ad4707dc2e4f7f2b965cabb34935c49c5534f6f3abf70dd0515f9bc14b1

Reporting entitySEK Interlocal #637

Victim entitySEK Interlocal #637

Incidentdiscovered Oct 19, 2021

Stated responseSent written notification to affected individuals

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov