Monmouth University Data Breach (June 2026): What Was Exposed and What To Do
According to the notice filed with the California Attorney General on Jun 30, 2026, Monmouth University reported a data breach. It was also reported to the Texas Attorney General. People affected: 399,600 people (official total in the Texas Attorney General filing, filed Aug 21, 2026).
Key facts
From 2 official filings- People affected
- 399,600
- Official total in the Texas Attorney General filing, filed Aug 21, 2026
- Source: Texas Attorney General, filed Aug 21, 2026
- Incident dates
- Feb 5, 2026 – Feb 13, 2026
- Source: California Attorney General, filed Jun 30, 2026
- Discovered Mar 3, 2026
- Source: notice letter in the California Attorney General filing of Jun 30, 2026
- Notice dates
- Letters dated Jun 30, 2026
- Source: notice letter in the California Attorney General filing of Jun 30, 2026
- First filed Jun 30, 2026; latest filing Aug 21, 2026
- Information exposed
- Social Security number
- Medical information
- Driver's license
- Passport number
- Government ID number
- Financial account number
- Payment card
- Health insurance information
- Date of birth
- Username and password
- Name
- Address
- Sources: California AG, Jun 30, 2026; Texas AG, Aug 21, 2026
- Filed with
-
- California Attorney General · filed Jun 30, 2026 source details
- Texas Attorney General · filed Aug 21, 2026 · 767 Texas residents · total 399,600 source details
- Free credit monitoring
- Offered: 12 months through Experian
- Source: notice letter in the California Attorney General filing of Jun 30, 2026
What to do now
Steps chosen from the information listed in the official filings. Your own letter may list more.
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Monmouth University offered free credit monitoring for 12 months through Experian. Use the enrollment code printed in your letter. Never share that code with anyone who contacts you.
Source: notice letter in the California Attorney General filing of Jun 30, 2026
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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.
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An IP PIN stops someone else filing a tax return with your Social Security number. Get one from the IRS at irs.gov.
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Call the number on the back of your card, ask whether it should be replaced, and check recent charges for anything you do not recognize.
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Review recent transactions, ask about account alerts, and ask whether a new account number is recommended.
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Check the Explanation of Benefits (EOB) statements from your insurer for visits, prescriptions or claims you do not recognize, and contact your insurer about anything unfamiliar.
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Change the password for the affected account and for any other account where you used the same password. Use a different password for every account (a password manager can help) and turn on two-step verification where it is offered.
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Ask your state's DMV what it recommends when a driver's license number has been exposed. Find your state's agency at USA.gov.
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If you think your passport is being misused, or it is lost or stolen, contact the U.S. Department of State.
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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.
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You can get free credit reports from all three bureaus at AnnualCreditReport.com, the official site.
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The Federal Trade Commission's IdentityTheft.gov gives you a personal recovery plan.
Is the letter real?
The agency published an official copy of the notice. Compare your letter with it:
- Official copy of the notice letter (California Attorney General, filed Jun 30, 2026)
The notice letter filed with the California Attorney General on Jun 30, 2026 lists this phone number for questions: (888) 398-1742. If the number in your letter is different, call the number in the official copy instead.
Source: notice letter in the California Attorney General filing of Jun 30, 2026
Never give your Social Security number, bank details or passwords to someone who contacts you first.
Timeline
Sources
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California Attorney General Notice filed Jun 30, 2026Filed as “Monmouth University” · Official copy of the letter
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Texas Attorney General Notice filed Aug 21, 2026Filed as “Monmouth University” · 767 Texas residents · total 399,600The link opens the agency's list; search it for the organization name.
Last updated Oct 20, 2026. Our summaries are written in our own words from the official filings above. Spotted an error? Report a correction.