Brown Advisory LLC Confirms Data Security Incident in Washington Filing
Brown Advisory LLC, an investment management and wealth advisory firm, filed a data breach notification with the Washington Attorney General on March 3, 2026, indicating a cybersecurity incident. The breach may have exposed a wide range of personal and financial information for affected individuals.
- State
- Washington
- Reported
- March 3, 2026
What may have been exposed
- Full Name
- Social Security Number
- Date of Birth
- Financial Account Number
- Routing Number
- Tax Identification Number
- Investment Portfolio Details
- Mailing Address
- Email Address
- Phone Number
Brown Advisory LLC, an independent investment management and wealth advisory firm, filed a data breach notification with the Washington Attorney General on March 3, 2026. This filing indicated a cybersecurity incident that may have exposed sensitive client information.
According to the official filing, the types of information potentially exposed in this incident include Full Name, Social Security Number, Date of Birth, Financial Account Number, Routing Number, Tax Identification Number, Investment Portfolio Details, Mailing Address, Email Address, and Phone Number.
The compromise of such detailed personal and financial identifiers carries significant risks for affected individuals. Those whose data was involved may face an elevated threat of identity theft, unauthorized access to financial accounts, and potential fraudulent activities using their personal information.
Individuals who receive a notification related to this incident should closely monitor all financial account statements, credit reports, and other personal records for any unusual or unauthorized activity. Placing a fraud alert or security freeze on credit files may also be a recommended protective measure.
These details are based on information filed publicly with the Washington Attorney General's office regarding the reported security incident.
What to do if you were affected
Based on the categories of information reported in this filing, these steps can help limit the risk of identity theft and fraud.
Freeze your credit
Place a free credit freeze with Equifax, Experian, and TransUnion. A freeze blocks new accounts from being opened in your name and can be lifted anytime.
Guard against tax fraud
File your tax return as early as possible and consider requesting an IRS Identity Protection PIN so no one can file a fraudulent return in your name.
Watch your financial accounts
Review bank and card statements for unfamiliar activity and turn on transaction alerts. Report anything you don't recognize to your bank right away.
Secure your online accounts
Change the password on any account that reused an exposed password and turn on two-factor authentication wherever it's offered.
Stay alert to targeted scams
Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.
Keep your notification letter
Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.
What to know about the Brown Advisory LLC data breach
- How many people were affected by the Brown Advisory LLC data breach, and what was exposed?
- The filing does not give a count of affected people and lists the following information as involved: Full Name, Social Security Number, Date of Birth, Financial Account Number, Routing Number, Tax Identification Number, Investment Portfolio Details, Mailing Address, Email Address, Phone Number. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
- Where can I see the official Brown Advisory LLC breach notice?
- Brown Advisory LLC's report is published by the Washington Attorney General: https://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA36893.pdf Compare it with the letter you received to confirm the dates and details match.
- What should I do after getting the Brown Advisory LLC data breach notice?
- Keep the letter and the envelope, and note the date it arrived. Freeze your credit with Equifax, Experian and TransUnion, change any passwords the notice mentions, and sign up for any free credit monitoring the letter offers. Then check whether you may have a claim.
- Is the Brown Advisory LLC data breach letter legit or a scam?
- A notice from Brown Advisory LLC in the mail matches the breach Brown Advisory LLC reported to the Washington Attorney General on March 3, 2026. Check that the company name and dates in your letter match that filing. A real notice of data security incident won't ask for your password, Social Security number or a payment — if it does, contact Brown Advisory LLC through a phone number or website you find yourself.
- Did Brown Advisory LLC offer free credit monitoring?
- Any free monitoring Brown Advisory LLC is offering will be described in the notice you received, along with an activation code and a sign-up deadline. Because Social Security numbers are listed in this filing, identity monitoring and a credit freeze matter more than usual. Enrolling does not give up your right to bring a claim.
- Can I sue Brown Advisory LLC over the data breach?
- It depends on what was exposed, the law in Washington and your own state, and whether you've been harmed. Most people take part through a class action rather than suing alone. Keep your notification letter — it's the proof that connects you to the breach.
- Is there a Brown Advisory LLC data breach class action lawsuit?
- Law firms often open an investigation after a breach notice like this one, and a class action lawsuit may follow. This page doesn't confirm that a lawsuit has been filed against Brown Advisory LLC. You usually don't have to join a class action to be included — if a settlement is reached, class members are notified and can file a claim.
- How much could a Brown Advisory LLC data breach settlement or claim be worth?
- There is no set amount, and no Brown Advisory LLC settlement is confirmed here. In past data breach settlements, payments depended on what data was exposed and on documented losses — fraud, out-of-pocket costs and time spent dealing with the breach. The filing lists Full Name, Social Security Number, Date of Birth as involved. Keep receipts and records; they're what damages claims are built on.
- Do I need a Brown Advisory LLC data breach lawyer or attorney?
- An attorney can read your notice and tell you whether a claim makes sense. A case review here is free, and data breach cases are usually handled on contingency, so there is no upfront cost.
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