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BreachRecord

Marquis Software Solutions Data Breach (November 2025): What Was Exposed and What To Do

Last updated Oct 20, 2026 · Based on 4 official filings · See sources

According to the notice filed with the Washington State Attorney General on Nov 26, 2025, Marquis Software Solutions reported a data breach. It was also reported to the Texas Attorney General and the California Attorney General. People affected: At least 624,062 people across 2 states (sum of state filings).

Key facts

From 4 official filings
Organization
Marquis Software Solutions
Also filed as: Marquis Software Solutions (on behalf of business customer data owners)
Source: Washington State Attorney General, filed Nov 26, 2025
People affected
At least 624,062
At least 624,062 people across 2 states (sum of state filings)
Sources: Texas AG, Dec 2, 2025; Washington AG, Nov 26, 2025
Incident dates
Aug 14, 2025 – Sep 4, 2025
Source: Washington State Attorney General, filed Nov 26, 2025
Discovered Aug 14, 2025
Source: Washington State Attorney General, filed Nov 26, 2025
Notice dates
First filed Nov 26, 2025; latest filing Feb 11, 2026
Source: Washington State Attorney General, filed Nov 26, 2025
Information exposed
  • Social Security number
  • Financial account number
  • Date of birth
  • Name
  • Address
Sources: Washington AG, Nov 26, 2025; Texas AG, Dec 2, 2025
Filed with
Free credit monitoring
No offer is stated in the filings we have. Check your letter.

What to do now

Steps chosen from the information listed in the official filings. Your own letter may list more.

  1. A credit freeze stops new credit accounts being opened in your name. It is free by law and you can lift it when you need credit: Equifax, Experian and TransUnion.

  2. An IP PIN stops someone else filing a tax return with your Social Security number. Get one from the IRS at irs.gov.

  3. Review recent transactions, ask about account alerts, and ask whether a new account number is recommended.

  4. Scammers often contact people after a breach, pretending to be the organization, a bank or a government agency. Do not give your Social Security number, passwords or codes to anyone who contacts you first.

  5. You can get free credit reports from all three bureaus at AnnualCreditReport.com, the official site.

  6. The Federal Trade Commission's IdentityTheft.gov gives you a personal recovery plan.

Is the letter real?

Letters usually list a phone number for questions. We could not find an official copy of the letter, so check that the organization named in your letter appears in the official filings listed below before you call.

Never give your Social Security number, bank details or passwords to someone who contacts you first.

Timeline

  1. Incident began (earliest date reported) source
  2. Organization discovered the incident source
  3. Incident ended (latest date reported) source
  4. Reported to Washington AG source
  5. Reported to Texas AG and California AG source
  6. Latest filing, with California AG source

Sources

  1. Washington State Attorney General Notice filed Nov 26, 2025
    Filed as “Marquis Software Solutions” · 269,773 Washington residents
    The link opens the Attorney General's list of notices.
  2. Texas Attorney General Notice filed Dec 2, 2025
    Filed as “Marquis Software Solutions” · 354,289 Texas residents
    The link opens the agency's list; search it for the organization name.
  3. California Attorney General Notice filed Dec 2, 2025
    Filed as “Marquis Software Solutions (on behalf of business customer data owners)”
  4. California Attorney General Notice filed Feb 11, 2026
    Filed as “Marquis Software Solutions (on behalf of business customer data owners)”

Last updated Oct 20, 2026. Our summaries are written in our own words from the official filings above. Spotted an error? Report a correction.