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Incident · State breach notice (California AG)

Impac Mortgage data breach: 61,066 people told in March 2026 about a 2024 intrusion

Compiled from public records. Updated 2026-11-13. By the cisonews.net Desk.

The Impac Mortgage data breach reached 61,066 people, according to Indiana's breach report, which records a notice sent on March 27, 2026, a breach date of February 21, 2024 and 182 Indiana residents. Impac Mortgage Holdings says it saw signs of unauthorized access to its systems on March 20, 2024, and that an unknown actor may have reached files holding names and Social Security numbers from February 21 to March 20, 2024. The letters are dated March 27, 2026, two years and a week after the company found the access.

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What happened in the Impac Mortgage breach?

The letter says that on March 20, 2024 Impac identified indications of potential unauthorized access to its systems, launched an investigation, secured its systems and reported the event to federal law enforcement. The investigation found that the unknown actor may have accessed certain files and folders with protected information between February 21 and March 20, 2024. The letter does not say how the actor got in or whether the attack was ransomware.

DateWhat happenedSource
February 21, 2024Start of the access window; breach date in Indiana's recordLetter; Indiana report
March 20, 2024Impac finds signs of unauthorized access; end of the access windowLetter
March 27, 2026Letters dated; notice sent, per IndianaLetter; Indiana report
April 17, 2026Notice recorded by California, with no breach date givenCalifornia list

Why did Impac take two years to send letters?

The letter's own explanation is the file review. After the investigation, Impac says, it began an extensive review of the affected files to find out whether sensitive information was in them, whom it related to, and the missing addresses of the people involved; it sent the notice once that review was finished. From March 20, 2024 to March 27, 2026 is 737 days. The notice-delay guide shows how that compares with other notices.

California's list records the notice on April 17, 2026 with the breach date given as "n/a".

What information was exposed in the Impac breach?

Name and Social Security number, per the letter filed with California. The letter says there is no evidence of identity theft or fraud tied to the event. The letter does not say whether the people affected are borrowers, applicants, staff or others.

How many people were affected?

61,066 in total, per Indiana, including 182 Indiana residents. The California copy of the letter says about 11 Rhode Island residents may be affected. California's record gives no total.

Texas's attorney general lists a report from Impac Mortgage Holdings, Inc., posted on April 22, 2026, with 1,431 Texans affected. The Texas record lists names, addresses and Social Security numbers among the information involved. The Texas ranking lists 2026's largest reports. The figure counts Texans only.

What is Impac offering people who got a letter?

Single-bureau credit monitoring, a credit report and a credit score through Cyberscout, a TransUnion company, at no charge; the number of months is printed on each letter and is blank in the public copy. People must enroll themselves. Questions go to 833-877-5456, Monday to Friday, 8:00 a.m. to 8:00 p.m. Eastern time. The guide to credit monitoring offers compares this offer with others, and the bank, brokerage and mortgage notice guide covers what other lenders have told customers.

How many Washingtonians were affected by the Impac Mortgage breach?

Washington's attorney general lists a notice from Impac Mortgage Holdings, Inc., reported on April 17, 2026, with a breach date of February 21, 2024 and 1,206 Washingtonians affected. The record lists names and Social Security numbers as the information compromised. The Washington ranking compares 2026's notices. The figure counts Washington residents only.

What the record leaves open

  • How the unknown actor got into Impac's systems.
  • Whether the people affected are borrowers, applicants, employees or a mix.
  • Why the address search took until 2026.

How this disclosure's timing compares

Impac Mortgage Holdings, Inc. disclosed 737 days after the discovery date its notice gives. Across the 206 other state breach notices on cisonews.net that date discovery to the day, the median gap is 100 days.

California's breach-notice rule

California's breach law (Civil Code § 1798.82 for businesses, § 1798.29 for state agencies) requires any person or business that must notify more than 500 California residents of a single breach to submit one sample copy of that notice to the Attorney General electronically. The California Attorney General's breach list, where this notice was found, is built from those submissions. Source: California Department of Justice, Office of the Attorney General, Data Security Breach Reporting. The guide Data breach laws by state: notice deadlines and attorney general thresholds in 23 states reads the rule in full, and the glossary defines Breach notification law.

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Sources

  1. 2026-11-13 · AWashington State Office of the Attorney General, data breach notifications list, published November 13, 2026
  2. 2026-11-13 · ATexas Attorney General, data security breach reports, published November 13, 2026
  3. 2026-03-27 · AImpac Mortgage Holdings, notice of data breach (redacted letter filed with the California Attorney General), published March 27, 2026
  4. 2026-04-17 · ACalifornia Attorney General, data breach notification record: Impac Mortgage Holdings, Inc., published April 17, 2026
  5. 2026-11-11 · ACalifornia Attorney General, search data security breaches (Impac), published November 11, 2026
  6. 2026-11-11 · AIndiana Attorney General, data breach year-to-date report 2026, published November 11, 2026
  7. undated · ACalifornia Department of Justice, Office of the Attorney General, Data Security Breach Reporting

Tier A: the organization itself (including notices it filed with a state attorney general), a regulator or SEC EDGAR. Tier B: established press. Each fact on this page carries its supporting passage in the page source.

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