HackingEducationEducationCustomer Data InvolvedDelayed DiscoveryIdentity (basic)PIIHighContained

Marymount Manhattan College

bd_eca2904e9c4a7438 · schema v1 · pii pii-v1

Severity

High

Discovered

Nov 12, 2021

Filed

Aug 3, 2022

To disclose

38 weeks

Affected

191,581

Linked

11 filings

Confidence

65%

Full breach record for Marymount Manhattan College →

Marymount Manhattan College notified individuals of a data security incident where an unknown actor gained unauthorized access to the network. The breach occurred on November 9, 2021, and was discovered on November 12, 2021. Personal information including names and variable data for 191,581 individuals was potentially accessed. The College engaged cybersecurity experts, secured the network, reported to the FBI, and offered credit monitoring services.

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California clockDiscovered Nov 12, 2021 → Notified Aug 3, 2022264d ✗ CA 60-day late38 weeks discovery → filing

Incident timeline

undetected · 3 days

discovery → filing · 38 weeks / 264 days

Nov 9, 2021

Begins

Nov 12, 2021

Discovered

Aug 3, 2022

Filed

vs. sector median

+29 wks slower

This filing is one of 11 about the same incident.View merged incident

A leak claim by conti about this victim predates this filing by 260 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitecontibd_d8037889dd5eb2182021-11-16 · +260dVerified by operator

Regulatory filings (9) · sorted by filing gap

Oregon State AGbd_2834d42f9f35cecd2022-08-03Verified by operator
Washington State AGbd_2f79fd085919e80f2022-08-03Verified
Maine State AGbd_6ca5c664e228016a2022-08-03Verified by operator
Massachusetts State AGbd_77eaeebaafde38102022-08-03Verified by operator

Show 5 more filings ↓up to 26d gap

Montana State AGbd_a908f58626ff956c2022-08-03Verified
Indiana State AGbd_dba28ad85e1dada02022-08-03Verified by operator
Delaware State AGbd_e0aca274db9d116f2022-08-03Verified
Delaware State AGbd_306f7347da1c40a42022-07-29 · +5dCandidate
Maine State AGbd_a75047f6c68670742022-08-29 · +26dVerified

Name: Marymount Manhattan College
norm: marymount manhattan college

Name: Marymount Manhattan College
norm: marymount manhattan college
Industry: Educationllm

Discovered: Nov 12, 2021
Breach occurred: Nov 9, 2021
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 3, 2022
Affected individuals: 191,581nationwide
Data types: Identity (basic)PII
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Reported the incident to the Federal Bureau of Investigation

During the incident: Took steps to secure the network environment
Engaged cybersecurity experts to conduct an investigation
Implemented additional security features to reduce the risk of a similar incident occurring in the future
Reported the incident to the Federal Bureau of Investigation
Offering complimentary credit monitoring and identity protection services for 12/24 months through IDX
Changes made: Implemented additional security features to reduce the risk of a similar incident occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 38 weeks(264 days from discovery to filing)
Compliance flags: CA 60-day late · 264dLeak >180d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Nov 12, 2021
→ Notified: Aug 3, 2022
264d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Nov 12, 2021 → Notified: Aug 3, 2022	264d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 10 filings · 8 states

View merged incident ↗

Delaware State AGJul 29 · first

Oregon State AG+5d

Washington State AG+5d

Maine State AG+5d

Massachusetts State AG+5d

Montana State AG+5d

Indiana State AG+5d

Delaware State AG+5d

California State AG+5d · this page

Maine State AG+31d

Pattern: first filing Jul 29 (DE), last Aug 29 (ME) — a 31-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://oag.ca.gov/ecrime/databreach/reports/sb24-555940
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 3, 2022
Raw hash: d1a93035697e7e76a3ce4fc8fe5bb60ca3b742585c0a72414a31526f731f0030

Linked disclosures

Ransomware claims (1)

Regulatory filings (9) · sorted by filing gap

Reporting entityMarymount Manhattan College

Victim entityMarymount Manhattan College

Incidentdiscovered Nov 12, 2021

Stated responseTook steps to secure the network environment

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov