HackingEducationGovernment IDIdentity (basic)MediumContained

Phillips Exeter Academy

bd_bcff3057e50dbd66 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

May 5, 2022

To disclose

—

Affected

1state residents only

Linked

2 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 involving unauthorized access to a single employee email account between September 30, 2021, and November 22, 2021. The unauthorized party intermittently accessed the account, but it was undetermined if emails or attachments were viewed. A review identified one New Hampshire resident whose name and Social Security number were contained in the mailbox. Phillips Academy mailed a notification letter on May 5, 2022, and offered the resident a complimentary one-year Experian IdentityWorks membership.

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Incident timeline

Sep 30, 2021

Begins

May 5, 2022

Filed

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_ae9d7921298797632022-05-05Verified

Name: Phillips Exeter Academy
norm: phillips exeter academy

Name: Phillips Exeter Academy
norm: phillips exeter academy

Discovered: —
Breach occurred: Sep 30, 2021 – Nov 22, 2021
Materiality determined: —
Notification sent: May 5, 2022
Affected individuals: 1state-resident count only
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Took steps to ensure its email environment was secure
Completed a thorough review of the emails and attachments in the involved employee email account
Mailed a notification letter via United States Postal Service First-Class mail
Offering the New Hampshire resident a complimentary one-year membership to Experian’s IdentityWorks
Changes made: Taking steps to further enhance the security of its email environment
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Massachusetts State AGMay 5 · first

New Hampshire State AGMay 5 · 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-20220505.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 5, 2022
Raw hash: 70fe5aebca0deb883b9493ede464aab17f6a5e7d52e6699d48582a16278d5d63

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityPhillips Exeter Academy

Victim entityPhillips Exeter Academy

IncidentUnauthorized Access

Stated responseTook steps to ensure its email environment was secure

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov