Was THEATER LEAGUE INC hit by ransomware?

THEATER LEAGUE INC was listed by the Losttrust ransomware operation (United States), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Losttrust ransomware group?

Losttrust is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the THEATER LEAGUE INC breach?

Losttrust published data attributed to THEATER LEAGUE INC. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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THEATER LEAGUE INC

Claimed by Losttrust · listed 3 years ago

34m

Age

since listed · data leaked

Status timeline

ListedSep 26, 2023
Data leakeddate unknown

At a glance

Group: Losttrust
Status: Data leaked
Country: United States
Sector: Media & Entertainment
Listed on leak site: Sep 26, 2023

About the victim

AI dossier — public-source company profile

Theater League Inc. is a not-for-profit civic performing arts organization founded by Mark Edelman in Kansas City in 1977. The organization presents Broadway productions in theaters across the United States and has served well over a million patrons. It also supports professional theater through grants, student ticket subsidies, new works development, and community education programs.

Industry: Non-profit Performing Arts Organization
Address: Kansas City, Missouri, United States
Founded: 1977

Attack summary

Severity: high — Data has been confirmed as published by the threat actor, indicating successful exfiltration. As a non-profit handling patron, donor, and employee PII along with financial records, the publication of this data constitutes significant exposure of sensitive business and personal information.

The Losttrust ransomware group claims to have compromised Theater League Inc. and has published data associated with the organization. The post does not specify whether encryption occurred, but the disclosed status indicates data has been published.

high

Data the group says was taken

AI dossier — extracted from the leak post

Organizational records
Financial/grant data
Patron/donor information
Employee records
Community program data

What the group claims

Theater League is a not-for-profit civic performing arts organization dedicated to enhancing the quality of life in the communities it serves with the thrill of live! theater. Founded by Mark Edelman in Kansas City in 1977, the organization has presented the Best of Broadway in theaters across the country to well over a million patrons. Today, we dedicate ourselves to supporting professional theater through grants, student ticket subsidies and new works development in our hometown of Kansas City and around the country.

Sources

Victim sitetheaterleague.org

Source

Indexed 3 years ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About Losttrust

Losttrust is a relatively new ransomware group that emerged in September 2023, operating with apparent financial motivations and demonstrating a broad international targeting scope across multiple sectors. The group's origin and affiliations remain largely undocumented by major threat intelligence organizations, with limited public reporting from established security firms regarding their operational structure or potential ransomware-as-a-service connections. Based on available victim data, Losttrust appears to employ opportunistic targeting methods, having compromised 53 known victims across diverse geographic regions including the United States, Italy, Germany, Argentina, and India, with particular focus on education, legal services, media organizations, food and agriculture companies, and government entities. The specific attack methodologies, initial access vectors, encryption techniques, and extortion tactics employed by Losttrust have not been extensively documented in public threat intelligence reports from major security vendors or law enforcement agencies. Given the group's recent emergence and limited visibility in established threat intelligence channels, their current operational status and activity levels remain unclear, though the breadth of their reported victim base suggests ongoing operations as of recent observations. The group has been linked to 53 public disclosures across our corpus. First observed on a leak site on September 26, 2023. The operation is currently inactive.

Also tracked as: LOST TRUST.

Timeline of this disclosure

September 26, 2023THEATER LEAGUE INC listed by Losttruston the group's public leak site

Other recent disclosures by Losttrust

Losttrust has been linked to 53 public victims on Darkfield. A sample of the most recent:

See the full Losttrust dossier →

Sector and geography

This disclosure adds to ransomware activity in the Media & Entertainment sector, which has 97 disclosures indexed across all operators we track. Geographically, THEATER LEAGUE INC is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Losttrust means THEATER LEAGUE INC appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Report the incident to your national CERT, CISA (United States), as required for your jurisdiction.
Monitor for the data appearing on Losttrust's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.