HackingStolen CredentialsData ExfiltratedCustomer Data InvolvedIDENTITY_BASICIDENTITY_GOVERNMENTFINANCIAL_ACCOUNTMediumContained
MR. COOPER GROUP INC.
bd_834e3ffcf5af1c48 · schema v1 · pii pii-v1
Full breach record for MR. COOPER GROUP INC. →Mr. Cooper (Nationstar Mortgage LLC) notified Hawaii residents of a data breach occurring between October 30 and November 1, 2023. Unauthorized access resulted in the exfiltration of personal information including names, addresses, SSNs, dates of birth, and bank account numbers. Approximately 47,818 Rhode Island residents were specifically identified. The company shut down systems, engaged forensic experts, and notified law enforcement. Affected individuals were offered 24 months of credit monitoring.
This filing is one of 4 about the same incident.View merged incident
Linked disclosures
Why this link?Regulatory filings (3) · sorted by filing gap
- bd_eb26991231ea6888SEC 8-Kfiled 2023-12-15(10d gap)Verified
- bd_c2d404959f98c389SEC 8-Kfiled 2023-11-09(26d gap)Verified
- bd_d32ed619bafc52c5SEC 8-Kfiled 2023-11-02(33d gap)Candidate
Source provenance
- Source URL
- https://cca.hawaii.gov/wp-content/uploads/2026/05/2024-0091.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Dec 5, 2023
- Raw hash
- f345b6a945fe70047bb0478b5870f5951e0ed934bb05e65a79dc80bd70dfb82a
Reporting entity
- Name
- NATIONSTAR MORTGAGE LLCnorm: nationstar mortgage
Victim entity
- Name
- MR. COOPER GROUP INC.norm: mr cooper
Incident
- Discovered
- Oct 31, 2023
- Materiality determined
- —
- Notification sent
- Dec 31, 2023
- Affected individuals
- Not disclosed
- Data types
- IDENTITY_BASICIDENTITY_GOVERNMENTFINANCIAL_ACCOUNT
- Attack vector
- Unauthorized Access
- MITRE ATT&CK
- T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
- Threat actor
- ExternalFinancial
- Regulator citations
- contacted law enforcement
- Initial access
- exploit_public_facing
Compliance
- Time to disclose
- 5 weeks(35 days from discovery to filing)
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.