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    Connecticut Data Breaches

    Browse data breaches affecting Connecticut residents in 2026. Stay informed about security incidents and protect your personal information.

    Showing 25 breaches affecting Connecticut

    Healthcare
    Low

    Dentist in New Britain

    Discovered Aug 25, 2026

    Dentist in New Britain, CT, experienced a data breach in August 2026, compromising its entire customer database. The incident was reported by a ransomware tracker.

    Other
    High

    Aerospace Alloys

    Discovered Aug 21, 2026

    Aerospace Alloys, Inc. experienced a data security event that was disclosed in August 2026. The full scope of the breach remains unclear.

    Other
    Low

    Northeastern Communications & Electrical

    Discovered Aug 4, 2026

    Northeastern Communications & Electrical data breach in 2026 was reported only by a ransomware tracker, with no company or regulator confirmation in the materials reviewed.

    Other
    Priority
    Low

    Yost Home Improvements

    Discovered Aug 4, 2026

    Yost Home Improvements data breach in 2026 was listed on a ransomware tracker, but the available source does not confirm what data was taken or how many people were affected.

    Other
    Low

    Preferred

    Discovered Jul 31, 2026

    Preferred Tool & Die data breach in 2026 was reported on ransomware.live, but no company confirmation or regulator filing was provided. The available material does not confirm any affected count or data types.

    Healthcare
    Priority
    Medium

    Oak Hill

    Discovered Jul 21, 2026

    Oak Hill, also known as The Connecticut Institute for the Blind, Inc., experienced a data breach in October 2025 where sensitive personal and health information was potentially exposed.

    Other
    Priority
    Low

    WBF Construction

    Discovered Jul 14, 2026

    WBF Construction experienced a data breach in July 2026, disclosed by the AiLock ransomware group.

    Other
    Low

    Wade's Dairy

    Discovered Jul 8, 2026

    Wade's Dairy experienced a data breach in July 2026, as reported by the Akira ransomware group.

    Other
    Priority
    High

    NAVIENT CORP

    Discovered Jul 2, 2026

    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.

    Investigation Open
    Other
    Priority
    Medium

    Nissan North America

    Discovered Jun 27, 2026

    Nissan North America experienced a data breach in June 2026 involving unauthorized access to its Oracle PeopleSoft software, potentially exposing employee information. The full scope of the breach and the exact number of affected individuals are still under investigation.

    You may be entitled to compensation

    Healthcare
    Priority
    Medium

    Gainwell Technologies

    Discovered Jun 8, 2026

    Gainwell Technologies experienced a data security incident in March 2025, which was publicly reported in May 2026.

    Healthcare
    Priority
    High

    Waveny Lifecare Network

    Discovered Jun 2, 2026

    Waveny Lifecare Network experienced a data breach in 2025-2026, impacting 8,548 individuals. This incident was confirmed by a Maine Attorney General filing.

    Telecommunications
    Low

    AT&T

    Discovered May 30, 2026

    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.

    Investigation Open
    Healthcare
    Low

    Capital Family Physicians

    Discovered May 29, 2026

    Capital Family Physicians experienced a data breach in 2026 due to a ransomware attack, potentially affecting approximately 167,303 individuals.

    You may be entitled to compensation

    Energy
    Priority
    High

    Eversource Energy

    Discovered May 21, 2026

    Eversource Energy experienced a data breach in April 2026, disclosed in May 2026, that affected approximately 3,049 individuals.

    Banking
    Priority
    High

    Connex Credit Union

    Discovered May 13, 2026

    Connex Credit Union experienced a data breach in 2026, reportedly affecting around 172,000 individuals.

    Healthcare
    Priority
    High

    Church Home of Hartford, Incorporated, d/b/a Seabury

    Discovered Apr 22, 2026

    Church Home of Hartford, Incorporated, d/b/a Seabury, a non-profit healthcare organization, experienced a data breach in 2026 that affected 1709 individuals.

    Investigation Open
    Other
    Priority
    High

    Hallisey & D’Agostino

    Discovered Apr 20, 2026

    Hallisey & D’Agostino, LLP experienced a data breach in 2026, which involved an external system breach.

    You may be entitled to compensation

    Other
    High

    Hallisey & D’Agostino, LLP

    Discovered Apr 17, 2026

    Hallisey & D’Agostino, LLP experienced a data breach in 2025 where names and addresses were exposed.

    Investigation Open
    Other
    Priority
    High

    **ste* **vi**n***t** **b**a****

    Discovered Mar 17, 2026

    Stevent Bail Bonds experienced a data breach in late 2025, which was publicly disclosed in early 2026, impacting over a million individuals.

    You may be entitled to compensation

    Investigation Open
    Retail
    Priority
    Medium

    Eyemart Express

    Discovered Mar 10, 2026

    Eyemart Express experienced a ransomware data breach in March 2026, impacting individuals across 42 states.

    You may be entitled to compensation

    Technology
    Low

    CarGurus, Inc.

    Discovered Feb 24, 2026

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

    Other
    Low

    TWU Local 100

    Discovered Feb 23, 2026

    TWU Local 100, the New York City chapter of the Transport Workers Union of America, was reportedly targeted by the Qilin ransomware gang in February 2026, which claimed to have exfiltrated sensitive data.

    Investigation Open
    Hospitality
    Priority
    Medium

    Avis Rent A Car System LLC

    Discovered Jan 15, 2026

    Avis Rent A Car System LLC experienced a data breach in early 2026, potentially affecting approximately 500,000 individuals.

    You may be entitled to compensation

    Investigation Open
    Other
    Priority
    Medium

    Nissan Investigates 910GBand Extortion

    Discovered Jan 15, 2026

    Nissan North America investigated a data breach in 2026 after a ransomware group claimed to have exfiltrated 910GB of data, leading to the exposure of personal and sensitive information for over 220,000 individuals in the US.

    You may be entitled to compensation

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