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Confirmed breach · 2 breaches on record

Nationstar Mortgage (dba Mr. Cooper) data breach

USUnited States

Nationstar Mortgage (dba Mr. Cooper) (United States) notified the California Attorney General of a data breach on 22 March 2024. The breach began on 30 October 2023, 144 days before it was reported.

Breach reported 22 March 2024

Status
Confirmed breach
People affected
Not reported yet
Reported
22 March 2024
Breach began
30 October 2023
Time to tell
144 days (the median in California’s notices over the last year: 154 days)

What was exposed

The register’s list does not say what was exposed; the notice it links to (under Sources) usually does.

Sources

Official notices are read by code from the regulator’s own register. More notices to California. · Corrections and changes

Breach reported 15 December 2023

Status
Confirmed breach
People affected
14,690,284 Oregon residents (one state’s count; the total can be higher)
Reported
15 December 2023
Across the state notices
at least 15,098,900 people (Oregon and Washington: each state counts only its own residents)
Breach began
30 October 2023
Time to tell
46 days (the median in California’s notices over the last year: 154 days)

What was exposed

The register’s list does not say what was exposed; the notice it links to (under Sources) usually does.

Sources

Official notices are read by code from the regulator’s own register. More notices to Oregon, Iowa, California, Washington. · Corrections and changes

If Nationstar Mortgage (dba Mr. Cooper) had your data

  1. Look for Nationstar Mortgage (dba Mr. Cooper)’s own notice or letter: it should say what of yours was involved. Keep it.
  2. The register’s list does not say what was exposed; the notice it links to (under Sources) usually does. If Nationstar Mortgage (dba Mr. Cooper) has a password of yours, change it now to be safe.
  3. Expect scams that use your details: calls, texts or emails pretending to be Nationstar Mortgage (dba Mr. Cooper), your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.

One email to confirm first. We use your address only for this alert, and one click deletes it.

Earlier breaches at Nationstar Mortgage (dba Mr. Cooper)

From the official registers’ and Have I Been Pwned’s full histories. A name match: check the notice to be sure it is the same company.

  1. California Attorney General · began 27 July 2015

More breaches in United States

  1. Quantum HealthUSUnited States · OH · 28 October 2026 Social Security numbersHealth insurance detailsHealth and medical information+1 273.1KTexas residents
  2. Indico Data SolutionsUSUnited States · MA · 28 October 2026 Social Security numbersDriver’s license numbersGovernment ID numbers+6 2.1KTexas residents
  3. Apollo Asset ManagementUSUnited States · NY · 28 October 2026 Social Security numbersDriver’s license numbersGovernment ID numbers+3 1.5KTexas residents
  4. DBA Tanya AlexanderUSUnited States · TX · 28 October 2026 NamesAddresses 417Texas residents
  5. DMW Retail Enterprises LLC dba Kult of Athena (KOA)USUnited States · IL · 28 October 2026 Financial account and card detailsNames 306Texas residents

Every breach in United States →

From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Official registers · Corrections and changes · Found a mistake? Tell us and we correct it.