Mariner Wealth Advisors, LLC Data Breach Notice (Washington Attorney General)

The exposure of your Social Security number, full date of birth, and financial and banking information means identity thieves now have the exact combination they need to open accounts, file fraudulent tax returns, and impersonate you for years to come. These three pieces of data do not expire. Unlike a credit card or password, they cannot be replaced.

771 Washington residents received the same notice

Mariner Wealth Advisors, LLC filed this notice with the Washington Attorney General on June 01, 2026, reporting that an incident occurred on November 21, 2025. That 192-day gap between the incident and the filing is the single most striking fact in the record. The company took more than six months to notify affected customers after the breach date.

The filing lists five categories of information involved: name, Social Security number, driver’s license or Washington ID card number, financial and banking information, and full date of birth. No passwords were exposed.

What a Social Security number paired with your date of birth actually enables

Thieves use this specific pair to apply for credit in your name, claim tax refunds, open bank accounts, and request official documents. Because the Social Security number never changes, the risk does not fade after a few months. The same stolen data can be sold and reused on the dark web for years.

Your full date of birth adds credibility to any fraudulent application. Financial and banking information gives thieves account numbers, routing details, or transaction history that can be used for immediate fraud or to make impersonation attempts more convincing. The driver’s license or state ID number completes the picture for government-related identity theft.

The permanent nature of this exposure

Name and date of birth cannot be changed. Your Social Security number is yours for life. These facts create a lifelong risk that credit monitoring alone cannot eliminate. The breach turns information that was once private into a permanent tool for fraudsters.

Because the company must notify affected individuals directly, the letter you received is the clearest signal that your records were included. If you have not received a letter, it usually means you were not part of the group of 771 people affected. However, if you have moved since November 21, 2025, contact Mariner Wealth Advisors to confirm whether your information was involved.

Why the six-month delay matters to you

The record shows the incident occurred on November 21, 2025, and the filing reached the Attorney General on June 01, 2026. During those 192 days, the exposed data could have been accessed, copied, or distributed without your knowledge. The delay does not change what was taken, but it does mean the information has had substantial time to circulate.

How this changes what you must watch for

Expect an increase in targeted attempts at tax fraud, new-account fraud, and medical identity theft. Thieves who hold both your SSN and date of birth can file a return before you do, claim your refund, and leave you to resolve the problem with the IRS. They can also open credit cards or loans that appear on your credit report months or years later.

Financial and banking details raise the immediate risk of unauthorized transfers or ACH fraud if any account numbers were included. Even partial banking information combined with your SSN makes verification questions easier for criminals to answer.

Concrete steps that address this specific exposure

• Place a fraud alert or credit freeze with the three major credit bureaus immediately. This prevents new accounts from being opened in your name without your explicit approval. A freeze is the strongest protection available and can be lifted when you need to apply for credit.
• File your taxes as early as possible each year and monitor for IRS rejection letters. Identity thieves often file fraudulent returns using stolen SSNs before the real taxpayer does. Early filing reduces the window they can exploit.
• Review every Explanation of Benefits statement from health insurers. Medical identity theft is common with this combination of data. Look for services you did not receive.
• Monitor your bank and investment accounts daily for the next several months. Set up transaction alerts for any movement on accounts linked to Mariner Wealth Advisors. Small test transfers are a common tactic.
• Request your annual free credit reports from Equifax, Experian, and TransUnion, then dispute any unfamiliar accounts. Do this every four months instead of once per year until you are confident the risk has been contained.

What cannot be fixed and what still can

The data itself cannot be retracted. Once it is out, it stays out. What you control is how quickly you detect and respond to misuse. Consistent monitoring, credit freezes, and early tax filing are the practical defenses available when SSNs and dates of birth are exposed.

The notice from Mariner Wealth Advisors confirms that 771 customers had exactly these categories of information involved in the November 21, 2025 incident. No evidence in the filing suggests passwords or login credentials were taken. The core risk is the permanent identifiers and financial details that enable long-term identity theft.

Stay vigilant. The letter you received marks the beginning of your responsibility to protect yourself with the tools that still work: freezes, monitoring, and rapid response to any suspicious activity. The information cannot be taken back, but its damage can still be limited.