Corporation Service Company (CSC) Data Breach: Edelson Lechtzin LLP Launches Investigation Into Exposure of Personal Information

National class action firm offering free case evaluations to individuals impacted by the Corporation Service Company cybersecurity incident

WILMINGTON, Del., Aug. 17, 2026 (GLOBE NEWSWIRE) -- Edelson Lechtzin LLP, a national class action law firm, is investigating data privacy claims arising from the Corporation Service Company (CSC) data breach. CSC has confirmed that an unauthorized actor accessed a third-party hosted database between August 10 and August 25, 2025, and took files containing personal information — including names, Social Security numbers, government-issued ID numbers, financial information, and dates of birth. CSC began notifying affected individuals in 2026. People who received a CSC data breach notice may be entitled to compensation and can request a free, confidential case evaluation.

Data Breach at a Glance

• Company: Corporation Service Company (CSC) — a global provider of legal, tax, fund administration, and digital brand services.
• Type of incident: Unauthorized access to a third-party hosted database (data theft/network intrusion).
• When it happened: An unauthorized actor accessed the database between August 10, 2025 and August 25, 2025, copying and taking certain files.
• When it was confirmed: CSC completed its file review and determined whose information was affected on July 15, 2026.
• Information exposed: Names, Social Security numbers, government-issued ID numbers, financial information, and dates of birth.
• Who is affected: Individuals whose data was contained in the impacted files. In Rhode Island alone, approximately 61 residents may be impacted.
• Protection offered by CSC: 12 months of complimentary single-bureau credit monitoring, credit report, and credit score services through Cyberscout, a TransUnion company.
• Investigating firm: Edelson Lechtzin LLP (free case evaluations).
  
  

What Happened in the CSC Data Breach?

Corporation Service Company learned of suspicious activity on its network, took steps to secure it, and launched an investigation with the help of third-party forensic specialists. The investigation determined that an unauthorized actor gained access to a third-party hosted database between August 10, 2025 and August 25, 2025, and copied and took certain files.

CSC then engaged a third party to conduct a comprehensive review of the affected files to identify what information was involved and whom it related to. CSC completed that review on July 15, 2026, when it determined which individuals’ information was in the impacted files and began notifying them.

What Information Was Exposed?

According to the CSC data breach notice, the impacted files may have contained personal information including:

• Full names
• Social Security numbers
• Government-issued identification numbers
• Financial information
• Dates of birth
  
  

This combination of identifiers is exactly what is used to commit identity theft and financial fraud, which is why affected individuals should act promptly to protect themselves.

How Did CSC Respond?

According to its notice, CSC:

• Immediately took steps to secure its network and launched an investigation with third-party forensic specialists;
• Implemented additional safeguards and reviewed its data privacy and security policies and procedures;
• Offered affected individuals 12 months of complimentary single-bureau credit monitoring, credit report, and credit score services through Cyberscout, a TransUnion company (enrollment required within 90 days of the notice date); and
• Established a dedicated assistance line at 1-866-898-4668, available Monday through Friday, 8:00 a.m. to 8:00 p.m. ET, excluding major U.S. holidays.
  
  

Who May Be Affected by the CSC Data Breach?

Individuals who received a data breach notification from Corporation Service Company may face an increased risk of identity theft and fraud. CSC has indicated that approximately 61 Rhode Island residents may be impacted, and the total number of affected individuals nationwide is expected to be larger.

What Are My Legal Options?

Edelson Lechtzin LLP is investigating a potential class action to pursue legal remedies on behalf of individuals whose sensitive personal data may have been compromised in the CSC breach. Enrolling in the credit monitoring CSC offers does not affect your right to pursue a legal claim. The firm will evaluate your rights and potential claims at no cost.

What Should I Do Now? Recommended Protective Steps

1. Confirm your involvement. Check whether you received a data breach notification from Corporation Service Company, and preserve any letters or emails you received about the breach.
2. Enroll in the free monitoring. Consider enrolling in the complimentary credit monitoring CSC is offering through Cyberscout — enrollment must be completed within 90 days of your notice.
3. Monitor your accounts. Review your account statements and credit reports regularly for suspicious activity over the next 12 to 24 months.
4. Consider a fraud alert or credit freeze. You may place a fraud alert or a credit freeze with the three major credit bureaus ( Equifax , Experian , and TransUnion ) at no cost.
5. Speak with a data privacy attorney. Contact Edelson Lechtzin LLP for a free, confidential case evaluation to understand your rights.
   
   

Contact Us for a Free Case Evaluation

Speak confidentially with a data privacy attorney today:

Marc Edelson, Esq. Edelson Lechtzin LLP 411 S. State Street , Suite N-300, Newtown, PA 18940 Phone: 844-696-7492 ext. 2 Email: medelson@edelson-law.com Web: www.edelson-law.com

Or click HERE to request a free consultation.

Frequently Asked Questions About the CSC Data Breach

When did the CSC data breach happen? An unauthorized actor accessed a third-party hosted database between August 10, 2025 and August 25, 2025. CSC completed its review and determined who was affected on July 15, 2026.

What information was exposed in the CSC breach? The impacted files may have included names, Social Security numbers, government-issued ID numbers, financial information, and dates of birth.

Is CSC offering anything to affected individuals? Yes. CSC is offering 12 months of complimentary single-bureau credit monitoring, credit report, and credit score services through Cyberscout, a TransUnion company. You must enroll within 90 days of the date on your notice.

Do I have to pay for a case evaluation? No. Edelson Lechtzin LLP is offering free, confidential case evaluations to individuals affected by the CSC data breach.

Does using the free credit monitoring waive my legal rights? No. Accepting CSC’s credit monitoring does not prevent you from pursuing a legal claim.

About Corporation Service Company (CSC)

Corporation Service Company is a global provider of legal, tax, fund administration, and digital brand services. CSC can be reached at 251 Little Falls Drive, Wilmington, DE 19808.

About Edelson Lechtzin LLP

Edelson Lechtzin LLP is a national class action law firm with offices in Pennsylvania and California. In addition to data breach litigation, the firm handles class and collective actions involving securities and investment fraud, federal antitrust violations, ERISA employee benefit plans, wage theft, and consumer fraud.

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