Monumental Sports & Entertainment Data Breach Lawsuit Investigation, April 2026 Notices
Received an April 2026 breach notice from Monumental Sports & Entertainment?
Dapeer Law, P.A. is investigating a potential class action against Lincoln Holdings LLC, doing business as Monumental Sports & Entertainment, a Washington, D.C. sports management and venue operator, on behalf of fans, season ticket holders, employees, and vendors whose personal information may have been copied from its network during a December 2025 cyber intrusion.
Who may qualify
You may be eligible to participate in a class action if any of the following applies:
- You received a data breach notification letter from Monumental Sports & Entertainment dated on or about April 27, 2026.
- You enrolled, or plan to enroll, in the complimentary 24-month identity-monitoring services offered through Kroll using the membership number printed in your letter.
- You provided personal or financial information to Monumental Sports & Entertainment as a season ticket holder, single-game ticket purchaser, fan club or app user, employee, contractor, or vendor at any time before the December 2025 incident.
- No proof of harm required to consult with counsel. You do not need to have already suffered identity theft to explore your legal options.
- Excluded: individuals who did not receive a breach notice and whose information was not involved in the incident.
Not sure if you qualify?
Send us your notice, we'll confirm your eligibility at no cost.
What happened
On April 27, 2026, Lincoln Holdings LLC, doing business as Monumental Sports & Entertainment, began mailing data breach notification letters to individuals whose personal information was involved in a December 2025 cyber incident. According to the company's notice filed with the Maine Attorney General, Monumental Sports detected unusual activity on certain computer systems on December 9, 2025, immediately activated its incident response protocols, isolated and secured the affected environment, and engaged outside cybersecurity specialists to conduct a forensic investigation. The investigation confirmed that an unauthorized party accessed the systems between December 8 and December 9, 2025 and removed copies of data during the two-day intrusion. Monumental Sports also coordinated with law enforcement and stated that notification was not delayed at the request of any law enforcement authority.
The forensic review of the affected files concluded on April 7, 2026, when investigators determined that personal information pertaining to specific individuals had been involved. The public notice does not itemize the categories of personal information taken, but Monumental Sports states the information was significant enough to pose a risk of identity misuse, which is why it is offering 24 months of complimentary identity-monitoring services through Kroll, including credit monitoring, fraud consultation, and identity theft restoration. Impacted individuals can activate the free services at enroll.krollmonitoring.com using the membership number printed in their notification letter. As of the company's most recent update, Monumental Sports has not identified any reported cases of fraud connected to the incident, though the absence of reported fraud does not mean impacted individuals are out of risk.
Roughly four and a half months passed between Monumental Sports' detection of the unauthorized activity on December 9, 2025 and the start of individual notice mailings on April 27, 2026. Several state breach notification statutes and consumer protection laws require timely notice to affected residents, often within 30 to 60 days of discovery. Dapeer Law is evaluating whether the multi-month notification delay, the company's decision not to publicly itemize the categories of personal information involved, and the security controls in place at the time of the intrusion support class claims for negligence, breach of contract, and statutory violations on behalf of season ticket holders, fans, employees, contractors, and vendors whose data may have been held on the affected systems.
What to do if you received a letter
Keep your notice letter
Do not discard it. Your letter contains the Kroll membership number you will need to enroll in identity monitoring, and it is important evidence if you decide to participate in a lawsuit.
Activate the complimentary 24-month Kroll identity monitoring
Use the unique membership number printed in your letter to enroll at enroll.krollmonitoring.com. The package includes credit monitoring, fraud consultation, and identity theft restoration through Kroll. Enroll before the deadline printed in your notice. Accepting this benefit does not waive your right to pursue legal action.
Place a fraud alert or credit freeze
Contact Equifax, Experian, and TransUnion to place a fraud alert or freeze on your file. Request a free weekly credit report from AnnualCreditReport.com, and use the FTC's identity theft recovery guide. Because the categories of data involved have not been itemized publicly, also review your bank, credit card, and ticketing or fan account statements regularly, set up real-time transaction alerts, and watch for unfamiliar new accounts or credit applications opened in your name.
Speak with a data breach attorney
Consultations with Dapeer Law are free and confidential. We'll review your notice, explain your options under state breach notification, consumer protection, and unfair-trade-practice laws, and advise whether you may be eligible to join a class action.
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Breach timeline
Compensation you may be entitled to
Out-of-pocket expenses
Credit freezes, identity restoration services, postage, notarization, and other costs incurred responding to the breach.
Time spent monitoring
Hours spent reviewing accounts, disputing fraudulent charges, and dealing with identity theft issues following the incident.
Identity theft & fraud losses
Unreimbursed funds stolen from accounts, unauthorized credit lines, account takeover losses, and tax refund fraud tied to the breach.
Statutory damages
Certain state data breach and consumer protection statutes provide for fixed damages regardless of actual loss, and some impose additional penalties for delayed notification.
Injunctive relief
Court orders requiring Monumental Sports & Entertainment to implement stronger data security practices, faster breach notification procedures, and improved access controls going forward.
Compensation categories depend on applicable state law, the types of data exposed, and documented losses. No recovery is guaranteed.
Common questions
I received a data breach letter from Monumental Sports & Entertainment. What should I do? +
Keep the letter, activate the complimentary 24-month Kroll identity monitoring at enroll.krollmonitoring.com using the membership number printed in your notice, and place a fraud alert or freeze with Equifax, Experian, and TransUnion. Because the company has not publicly itemized the categories of data involved, also review your bank, credit card, and ticketing account statements regularly. Then contact a data breach attorney to discuss your legal options before any deadline runs.
Am I eligible to join a class action against Monumental Sports & Entertainment? +
If you received the official April 2026 breach notification letter, or can otherwise verify that your personal information was held on the affected systems, you may be eligible. Eligibility also depends on your state of residence, the categories of data involved in your individual notice, and any documented losses. Contact Dapeer Law for a free case evaluation.
How much money could I receive from a class action lawsuit? +
Data breach class action recoveries vary significantly. Settlements typically range from a few hundred dollars for basic out-of-pocket losses to several thousand dollars for documented identity theft, with class size, damages, and negotiation all affecting the final amount. Cases involving multi-month notification delays sometimes command higher per-class-member recoveries because they support additional statutory and consumer protection claims. No payout is guaranteed, and this investigation has not yet resulted in a settlement.
What personal information was exposed in the breach? +
Monumental Sports & Entertainment has stated that the stolen files contained personal information significant enough to pose a risk of identity misuse, but the public notice did not itemize the exact data elements. The categories of data vary by individual, so each recipient should review their own notification letter for the specifics that apply to them. Dapeer Law can help you obtain and interpret the notice.
Did Monumental Sports & Entertainment offer free credit monitoring? +
Yes. Impacted individuals are eligible for 24 months of complimentary identity-monitoring services through Kroll, including credit monitoring, fraud consultation, and identity theft restoration. Enrollment is available at enroll.krollmonitoring.com using the membership number printed in the notification letter. Accepting these services does not waive your right to pursue legal action.
How many people were affected by the Monumental Sports & Entertainment breach? +
Monumental Sports & Entertainment has not publicly disclosed the total number of impacted individuals. The Maine Attorney General filing reflects only Maine residents, not the full nationwide count. We will update this page as additional state filings or court documents become available.
Is there a deadline to take legal action? +
Yes. Statutes of limitations for data breach claims vary by state and legal theory, typically ranging from one to six years. Waiting can permanently bar your claim. Contact us as soon as possible for a free evaluation.
How do I get a copy of the official breach notice? +
The sample notice is available through the Maine Attorney General's data breach notifications portal, where Monumental Sports & Entertainment filed the public notice on or about April 27, 2026. Dapeer Law can also help you obtain a copy during a free consultation.
Sources & references
- Official breach notice filing · Maine Attorney General, Data Breach Notifications Portal
- Defendant · Lincoln Holdings LLC d/b/a Monumental Sports & Entertainment (monumentalsports.com)
- Credit bureau freezes · Equifax · Experian · TransUnion
- Free weekly credit reports · AnnualCreditReport.com
- Identity theft recovery guide · FTC consumer identity theft guide
Don't let the deadline decide for you. Submit your claim today.
You only have a limited window to act. Our team will review your notice, explain your options, and tell you whether you may be eligible to recover compensation, at no cost to you.
