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investigation open

Updated about 1 month ago

Wisner Baum LLP Data Breach

▼ Key takeaways

•Reports suggest a potential breach involving Wisner Baum LLP.
•Discovered on January 23, 2026.
•Possible data exposed: Social Security Number, Driver's License, Name.
•Affects individuals in: Maine, Massachusetts, California.
•Confirmation level: Confirmed by regulators.

Breach confirmed

The Wisner Baum LLP breach is confirmed. If you may be affected, add your details below and we will take it from there.

Detailed summary

Wisner Baum LLP, a law firm, experienced an external system breach (hacking) that occurred between October 8 and October 9, 2025. The company discovered the breach on December 15, 2025. Wisner Baum LLP sent out notifications to affected clients and individuals on January 21, 2026. The firm referenced its investigation being complete and notices mailed, with enhanced monitoring and protections implemented.

Confirmed data types exposed in the breach include Social Security Numbers, driver's licenses, and names or other personal identifiers. At least 258 Massachusetts residents were affected, along with 56 Maine residents. The total number of affected individuals across all states is not publicly available. No medical records, financial accounts, or credit/debit numbers were compromised. The breach was a result of a security flaw in a SonicWall firewall.

Data breach details can emerge over time, and affected individuals may experience delayed notifications.

Data possibly involved

Social Security Number
Can be used to open fraudulent accounts and file false tax returns
Driver's License
Can be used for identity fraud
Name

Company Response Timeline

Response Grade

Notified consumers within 31–60 days

Breach Occurred

Oct 8, 2025

Company Discovered

Dec 15, 2025

Regulator Notified

Jan 23, 2026

Consumers Notified

Jan 21, 2026

68 days to discover

37 days to notify consumers

Breach Verification Status

Reports Only

Complete

Initial dark web reports of potential breach

Company Confirmed

Complete

Company has acknowledged the breach

Regulator Confirmed

Current

Confirmed by regulatory authorities

Note: Breach verification can take time. Information may evolve as more details become available from companies and regulators.

Case Status:

Investigation Open

We're actively investigating this case and seeking affected individuals.

Were you affected? Submit your information below.

Were You Affected By This Breach?

If you are a customer or have received a data breach notification, you may submit your information as part of our ongoing investigation. Submitting your information is free and does not obligate you.

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Check Your Risk Level

Answer a few questions to understand how this breach might affect you

Do you use Wisner Baum LLP?

Yes

What state are you in?

What should I do?

Change your passwords

Update passwords for the affected service and any accounts using the same password

Enable two-factor authentication

Add an extra layer of security to your accounts

Monitor your accounts

Watch for suspicious activity on your financial and online accounts

Watch for phishing attempts

Be cautious of emails or messages claiming to be from the affected company

Consider a credit freeze

Prevent unauthorized access to your credit report

Scan your email for other exposures

Check whether this address shows up in other known breaches. Free, no account.

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Data Shield files removal requests with every broker that accepts an authorized agent, and gives you the exact link or letter for the brokers that only accept requests from you.

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