Almeida Law Group is investigating a data breach at Langwasser & Company CPAs. The breach occurred on May 5th, 2026. If you were affected, contact Almeida Law Group.
About Langwasser & Company CPAs
Langwasser & Company CPAs, LLP is a full-service accounting firm based in Upland, California. In operation for more than 30 years, the firm offers tax preparation and planning, financial statements and accounting, IRS representation, auditing, estate and gift planning, business consulting, litigation support, and human resources consulting to clients throughout Southern California and across the United States. Because accounting firms routinely handle clients’ financial records, tax documents, and personally identifying information, a breach at this type of organization carries meaningful risk of financial harm to those affected.
What Happened?
Langwasser & Company CPAs was listed in a California Attorney General sample breach notice filed on August 17th, 2026. The notice reports that a breach occurred on May 5th, 2026. The filing does not specify the attack vector, the number of individuals affected, or the specific categories of personal information that were compromised. The notice letter references credit monitoring enrollment, fraud alerts, and credit freeze instructions as recommended steps for affected consumers, but no data types are explicitly identified in the notice or in any independent reporting found to date.
No ransomware group claims, media coverage, or litigation related to this incident were identified during research.
Key Facts at a Glance
- Company or Organization: Langwasser & Company CPAs
- Industry: Accounting, Tax Preparation, Bookkeeping, and Payroll Services (NAICS 5412)
- Location: 99 E C St, Suite 100, Upland, CA 91786
- Date of breach: May 5th, 2026
- Date of consumer notification: August 17th, 2026
- Source: California Attorney General sample breach notice; Langwasser & Company CPAs official website
What Should You Do?
If you received a notice from Langwasser & Company CPAs, review any identity protection enrollment offer and sign up before the deadline if one is provided. Consider placing a fraud alert or security freeze on your credit files with Equifax, Experian, and TransUnion to help prevent new accounts from being opened in your name. Monitor your existing financial accounts closely for unauthorized activity, and obtain free copies of your credit reports at AnnualCreditReport.com. Federal law entitles you to one free report from each of the three major bureaus every twelve months. If you spot suspicious activity or believe your information is being misused, file a report with the Federal Trade Commission at IdentityTheft.gov, which provides a personalized recovery plan and tools to help you address identity theft.
Your Legal Rights
If your personal information was involved in this breach, you may have legal rights depending on the facts of the incident and the law in your state. Almeida Law Group represents consumers in data breach and privacy litigation and can help you evaluate whether you may have a claim. Contact us at (708) 529-5418 or through our contact page for a free case evaluation.
