FEDERALItem 8.01 · voluntaryHackingFinancial ServicesFinanceCustomer Data InvolvedHighContained

MR. COOPER GROUP INC.

bd_c2d404959f98c389 · schema v1 · pii pii-v1

Severity

High

Financial impact

$10.00M

Discovered

Oct 31, 2023

Filed

Nov 9, 2023

To disclose

9 days

Affected

Not disclosed

Linked

5 filings

Confidence

80%

Full breach record for MR. COOPER GROUP INC. →4 incidents on file

Mr. Cooper Group Inc., a residential mortgage servicer, disclosed via Form 8-K/A on November 9, 2023 that on October 31, 2023 it detected unauthorized third-party access to certain technology systems. The company shut down systems precautiously, disrupting customer payments and account access from November 1-4, 2023. Preliminary analysis found certain customer data was exposed; scope still under investigation. The company estimated $5-10 million of additional Q4 vendor costs and notified law enforcement and regulators.

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Incident timeline

discovery → filing · 9 days

Oct 31, 2023

Discovered

Nov 9, 2023

Filed

vs. sector median

8 wks faster

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

SEC 8-Kbd_d32ed619bafc52c52023-11-02 · +7dCandidate
Hawaii State AGbd_834e3ffcf5af1c482023-12-05 · +26dVerified
SEC 8-Kbd_eb26991231ea68882023-12-15 · +36dVerified
Delaware State AGbd_b07179e304b6e55f2024-03-26 · +138dVerified

Name: MR. COOPER GROUP INC.
norm: mr cooper
SEC CIK: 0000933136

Name: MR. COOPER GROUP INC.
norm: mr cooper
SEC CIK: 0000933136
Industry: Financial Servicesllm

Discovered: Oct 31, 2023
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: —
Attack vector: Unauthorized Access
Threat actor: External
Regulator citations: Notified regulatory authorities

During the incident: Deployed containment measures involving shutting down certain systems as a precautionary measure
Notified law enforcement, regulatory authorities, and other stakeholders
Working with existing cyber security firms and retained additional cybersecurity experts to oversee actions
Initiated a thorough investigation to determine the cause and full extent of the incident
Announced to customers that they will not be subject to late fees, penalties or negative credit reporting related to late payments as a result of this incident
Restarted servicing operations on Saturday, November 4, 2023
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 days(9 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 · 2 states

View merged incident ↗

SEC 8-KNov 2 · first

SEC 8-K+7d · this page

Hawaii State AG+33d

SEC 8-K+43d

Delaware State AG+145d

Pattern: first filing Nov 2, last Mar 26 (DE) — a 145-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 filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statementThis record

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://www.sec.gov/Archives/edgar/data/933136/000093313623000103/nsm-20231102.htm
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
Filed at: Nov 9, 2023
Raw hash: 05b86a1a83e7d5608d2eed4ea25050a3af031b59b6f4751d23d6e96bd1669895

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Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityMR. COOPER GROUP INC.

Victim entityMR. COOPER GROUP INC.

Incidentdiscovered Oct 31, 2023

Stated responseDeployed containment measures involving shutting down certain systems as a precautionary measure

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.sec.gov

Source filing