Incident · State breach notice (California AG)
Plaza Home Mortgage data breach: 137,976 people after an employee's computer was accessed in February 2026
Compiled from public records. Updated 2026-11-09. By the cisonews.net Desk.
Plaza Home Mortgage reported a data breach affecting 137,976 people in total, the figure on Indiana's attorney general list, which counts 1,490 Indiana residents among them. The San Diego company says threat actors got into one employee's computer on or around February 17, 2026, and that an unauthorized party may have obtained some customers' personal information. The letter lists names, addresses, Social Security numbers, birth dates, driver's license or other government ID, and information from mortgage loan applications and servicing. Letters are dated May 19, 2026, and recipients are offered 12 months of credit monitoring from CyEx.
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How many people were affected by the Plaza Home Mortgage data breach?
137,976 in total, the number Plaza reported to Indiana. The letter gives no count. The state lists count their own residents:
| Regulator | Who it counts | Number | Recorded |
|---|---|---|---|
| Indiana attorney general | Total reported by Plaza | 137,976 | Notice sent May 29, 2026 |
| Texas attorney general | Texans | 12,610 | Posted June 9, 2026 |
| Washington attorney general | Washington residents | 9,598 | Reported June 5, 2026 |
| Massachusetts consumer affairs office | Massachusetts residents | 4,033 | Reported June 17, 2026 |
| Indiana attorney general | Indiana residents | 1,490 | Notice sent May 29, 2026 |
| California attorney general | No count published | — | Recorded June 5, 2026 |
The ranking of 2026's largest breaches explains how Indiana's list counts totals and why the state figures differ.
What happened, and when?
Plaza says its security controls flagged the access at once and it acted immediately to shut the attack down, then removed the threat actor from its systems and investigated.
| Date | Event |
|---|---|
| On or around February 17, 2026 | Unauthorized access to one employee's computer |
| May 19, 2026 | Date on the letters |
| May 29, 2026 | Notice sent, per Indiana |
| June 5, 2026 | Notice recorded by California and reported to Washington |
| June 9, 2026 | Notice posted by Texas |
| June 17, 2026 | Notice reported to Massachusetts |
From the access to the date on the letters took 91 days, and to Indiana's notice date 101. The guide to notice delays compares this with the rest of the log.
What information was involved?
The letter says the information may have included name, address, Social Security number, birth date, driver's license or other government identification, and information related to mortgage loan applications and servicing. It adds that the information was not the same for each person. For its 9,598 residents, Washington's attorney general also lists usernames and passwords or security question answers. Massachusetts marks Social Security numbers and driver's license numbers as breached for its 4,033 residents. The guide to bank, brokerage and mortgage breach notices sets out what other lenders' letters say.
What is Plaza Home Mortgage offering?
| Item | Detail from the letter |
|---|---|
| Service | 12 months of credit monitoring and identity theft services from CyEx ("Financial Shield Complete": one-bureau credit monitoring, financial transaction and home title monitoring, $1 million identity theft insurance) |
| Enrollment | With the activation code and before the deadline printed on each letter |
| Help line | 844-953-3450, Monday to Friday 8 a.m. to 11 p.m. and Saturday 9 a.m. to 6 p.m., except holidays |
| Advice | Monitor financial accounts, place a fraud alert with one of the three credit bureaus, and check credit reports periodically |
California's record also holds a second letter, for employees. The guide to credit monitoring offers compares offers like this one.
What the documents leave open
- How the threat actors got into the employee's computer, and how long they had access.
- Whether the 137,976 people are borrowers, applicants or others, and which data each had involved.
- Why Washington lists account credentials when the letter does not.
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.
Other financial services incidents on cisonews.net
- ICW Group Holdings, Inc., Breach notice, first disclosed November 13, 2026
- Point72 Asset Management, L.P., Breach notice, first disclosed November 5, 2026
- The Vanguard Group, Inc., Breach notice, first disclosed November 4, 2026
- Hippo Analytics, Breach notice, first disclosed November 3, 2026; 176,128 affected in total (Indiana Attorney General)
- Baanx US Corp, Breach notice, first disclosed October 30, 2026; 6,594 affected in total (Indiana Attorney General)
Sources
- 2026-06-05 · APlaza Home Mortgage, notice letter filed with the California Attorney General, published June 5, 2026
- 2026-06-05 · ACalifornia Attorney General, data breach notification record, published June 5, 2026
- 2026-11-09 · AIndiana Attorney General, data breach year-to-date report (2026), published November 9, 2026
- 2026-11-09 · ATexas Attorney General, data security breach reports, published November 9, 2026
- 2026-11-09 · AWashington Attorney General, data breach notifications, published November 9, 2026
- 2026-11-09 · AMassachusetts Office of Consumer Affairs and Business Regulation, 2026 Data Breach Notification Report, published November 9, 2026
- 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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