Missouri Data Breaches

Coltrane Systems was listed in an unconfirmed 2026 data breach report by Ransomware.live on August 18, 2026. The available report does not state how many people were affected or what data was involved.

Boelte LLC data breach in 2026 was reported by RansomLook as a leaked post tied to the Crpx0 group. No official confirmation, regulator filing, or breach notice was identified in the source material provided.

Terry P. Moosmann CPA PC experienced a data breach in July 2026, reported by the ransomware group "thegentlemen," with unconfirmed details about affected individuals or specific data types.

Navient Corp experienced a third-party data breach in June 2026, where unauthorized access to a law firm's systems exposed the personal data of approximately 2.5 million student loan borrowers.

Midland Care Connection, Inc. experienced a data incident in 2026 where unauthorized access to its network may have exposed personal information.

Columbia Orthopaedic Group experienced a data breach in 2026, reportedly claimed by the LockBit 5.0 ransomware group. Official confirmation from the company is not yet available.

The purported 2026 data breach at "Lee Law Offices" is a misidentification. The research indicates a major AT&T data breach affecting over 100 million individuals in 2024, which frequently causes confusion in data security discussions.

Columbia Orthopaedic Group experienced a reported cyberattack in May 2026, though the company has not yet confirmed the data breach.

Accent Dental Center experienced a data breach in April 2026, reportedly due to an Akira ransomware attack.

First Trinity Financial, an Oklahoma-based insurance holding company, experienced a data breach in April 2026 due to a ransomware attack by the dragonforce group, as reported by ransomware tracking sites.

Durvet, Inc. experienced an external system breach in October 2025 where data was acquired due to hacking, as reported to the Maine Attorney General in March 2026.

A data breach impacting hopkins-law.com was reported in March 2026, though there is no public confirmation from the company or regulatory bodies.

CarGurus, Inc. experienced a data breach in February 2026, reportedly compromising the data of millions of user accounts and corporate records.

Cargo Largo, a discount retail store, experienced a data breach in February 2026 due to an Akira ransomware attack, with the attackers claiming to possess customer information, financials, and other internal corporate files. The exact number of affected individuals has not been disclosed.

FAS Wealth Partners, Inc., a financial advisory firm, was reportedly targeted in a ransomware attack by DragonForce on February 16, 2026, with a threat of data exfiltration. The specific types of data exposed and the number of individuals affected remain unconfirmed.