HackingEducationEducationStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Phillips Exeter Academy

bd_66011e77b92c8789 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 1, 2021

Filed

Sep 21, 2021

To disclose

20 weeks

Affected

99state residents only

Linked

5 filings

Confidence

66%

Full breach record for Phillips Exeter Academy →3 incidents on file

Phillips Academy notified the New Hampshire Attorney General of a data security incident in May 2021. Unauthorized parties accessed employee email accounts between May 8 and May 25, 2021. The incident potentially exposed New Hampshire residents' names, Social Security numbers, driver's license numbers, and financial account information. Phillips Academy notified 99 NH residents and offered credit monitoring services.

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Incident timeline

May 8, 2021

Begins

Sep 21, 2021

Filed

vs. sector median

+12 wks slower

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Montana State AGbd_21b2007a6968edbf2021-09-21Candidate
Massachusetts State AGbd_7e05ba91bba26d932021-09-21Verified
Indiana State AGbd_9d14e6095bc0d4472021-09-21Verified
Maine State AGbd_a7759522c19f79282021-09-21Verified

Name: Phillips Exeter Academy
norm: phillips exeter academy

Name: Phillips Exeter Academy
norm: phillips exeter academy
Industry: Educationllm

Discovered: May 1, 2021
Breach occurred: May 8, 2021 – May 25, 2021
Materiality determined: —
Notification sent: Sep 21, 2021
Affected individuals: 99state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External
Initial access: valid_credentials

During the incident: Launched an investigation
Conducted a comprehensive review of the contents of those mailboxes
Established a toll-free, incident response line
Offering complimentary memberships to Experian’s IdentityWorks
Changes made: Continuing to enhance its existing security protocols and practices
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 20 weeks(143 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Montana State AGSep 21 · first

Massachusetts State AGSep 21 · first

Indiana State AGSep 21 · first

Maine State AGSep 21 · first

New Hampshire State AGSep 21 · 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://mm.nh.gov/files/uploads/doj/remote-docs/phillips-academy-20210921.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 21, 2021
Raw hash: f40405c1996ef597ca9214e5cd7a6451a8c9ec9b0fe1b2e7b7003a2f1fd564e6

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityPhillips Exeter Academy

Victim entityPhillips Exeter Academy

Incidentdiscovered May 1, 2021

Stated responseLaunched an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov