Seyfarth Shaw LLP Data Breach (September 2026): What Was Exposed and What To Do
According to the notice filed with the California Attorney General on Sep 18, 2026, Seyfarth Shaw LLP reported a data breach. It was also reported to the Texas Attorney General. People affected: 56,755 people (official total in the Texas Attorney General filing, filed Sep 21, 2026).
Key facts
From 2 official filings- People affected
- 56,755
- Official total in the Texas Attorney General filing, filed Sep 21, 2026
- Source: Texas Attorney General, filed Sep 21, 2026
- Incident dates
- Aug 18, 2026
- Source: California Attorney General, filed Sep 18, 2026
- Discovered Aug 18, 2026
- Source: notice letter in the California Attorney General filing of Sep 18, 2026
- Notice dates
- Letters dated Sep 18, 2026
- Source: notice letter in the California Attorney General filing of Sep 18, 2026
- First filed Sep 18, 2026; latest filing Sep 21, 2026
- Information exposed
- Social Security number
- Name
- Sources: California AG, Sep 18, 2026; Texas AG, Sep 21, 2026
- Filed with
-
- California Attorney General · filed Sep 18, 2026 source details
- Texas Attorney General · filed Sep 21, 2026 · 305 Texas residents · total 56,755 source details
- Free credit monitoring
- Offered: 24 months through Cyberscout
- Source: notice letter in the California Attorney General filing of Sep 18, 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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Seyfarth Shaw LLP offered free credit monitoring for 24 months through Cyberscout. 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 Sep 18, 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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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 Sep 18, 2026)
The notice letter filed with the California Attorney General on Sep 18, 2026 lists this phone number for questions: 1-833-516-6266. 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 Sep 18, 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 Sep 18, 2026Filed as “Seyfarth Shaw LLP” · Official copy of the letter
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Texas Attorney General Notice filed Sep 21, 2026Filed as “Seyfarth Shaw LLP” · 305 Texas residents · total 56,755The 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.