https://www.cisonews.net/incidents/city-of-attleboro-2025-11cisonews.neten2026-11-15City of Attleboro data breach: a month inside the city's systems, and letters eleven months later https://www.cisonews.net/incidents/springfield-public-schools-2026-09cisonews.neten2026-11-15Springfield Public Schools cyberattack: Interlock ransomware, staff SSNs and student records taken https://www.cisonews.net/incidents/waterford-hotel-group-2026-05cisonews.neten2026-11-15Waterford Hotel Group data breach: systems viewed or downloaded, letters four months later https://www.cisonews.net/incidents/lhc-group-2026-04cisonews.neten2026-11-15LHC Group data breach: vishing call led to theft of patient files from a vendor platform, April 2026 https://www.cisonews.net/incidents/ocean-edge-resort-2025-07cisonews.neten2026-11-15Ocean Edge Resort data breach: files copied in July 2025, letters in August 2026 https://www.cisonews.net/incidents/bridgeway-benefit-technologies-2026-03cisonews.neten2026-11-15Bridgeway Benefit Technologies data breach: a compromised email account at a health plan vendor https://www.cisonews.net/incidents/ernst-young-2026-03cisonews.neten2026-11-15EY data breach: tax documents downloaded from an IT support ticket platform https://www.cisonews.net/incidents/one-medical-seniors-2026-06cisonews.neten2026-11-15One Medical Seniors data breach: archived Iora Health patient files accessed June 8 to 11, 2026 https://www.cisonews.net/incidents/us-bank-2026-05cisonews.neten2026-11-15U.S. Bank data breach: credit card numbers exposed at a service provider of FIS, May 2026 https://www.cisonews.net/incidents/mercor-2026-03cisonews.neten2026-11-15Mercor data breach: the LiteLLM malware, and experts' records downloaded in March 2026 https://www.cisonews.net/incidents/fresenius-kabi-2026-01cisonews.neten2026-11-15Fresenius Kabi data breach: employee records on the network of its Ivenix subsidiary https://www.cisonews.net/incidents/orthopaedic-specialists-of-massachusetts-2026-01cisonews.neten2026-11-15Orthopaedic Specialists of Massachusetts data breach: patient data copied in January, letters June 12, 2026 https://www.cisonews.net/incidents/delaware-north-2026-01cisonews.neten2026-11-15Delaware North data breach: files copied through an employee's Microsoft account, license numbers exposed https://www.cisonews.net/incidents/eversource-energy-2026-04cisonews.neten2026-11-15Eversource data breach: phished employee logins, SharePoint files and an extortion email https://www.cisonews.net/incidents/onedigital-investment-advisors-2025-08cisonews.neten2026-11-15OneDigital Investment Advisors data breach: client records copied from Salesforce through the Drift app https://www.cisonews.net/incidents/hasbro-2026-03cisonews.neten2026-11-15Hasbro data breach: a vishing campaign, systems offline, and letters six months later https://www.cisonews.net/incidents/boston-capital-2026-01cisonews.neten2026-11-15Boston Capital data breach: files copied in January 2026, letters in two waves https://www.cisonews.net/incidents/ericsson-2025-04cisonews.neten2026-11-15Ericsson data breach: a service provider's vishing incident, and letters ten months later https://www.cisonews.net/incidents/ep-wealth-advisors-2026-02cisonews.neten2026-11-15EP Wealth Advisors data breach: four hours on one employee's login, and client files copied https://www.cisonews.net/incidents/city-of-peabody-2025-07cisonews.neten2026-11-15City of Peabody data breach: files copied from city systems in June and July 2025, letters in February 2026 https://www.cisonews.net/incidents/nova-biomedical-2025-07cisonews.neten2026-11-15Nova Biomedical data breach: July 2025 malware attack disrupted operations, letters in January 2026 https://www.cisonews.net/incidents/doctor-alliance-2025-11cisonews.neten2026-11-15Doctor Alliance data breach: a home health document portal, and the agencies that sent the letters https://www.cisonews.net/incidents/discord-2025-09cisonews.neten2026-11-15Discord data breach: a customer service vendor, support tickets and about 70,000 ID photos https://www.cisonews.net/incidents/acadia-healthcare-2026-11cisonews.neten2026-11-14Acadia Healthcare data breach letter: an email incident in March and July 2026 reached patients' files https://www.cisonews.net/incidents/dexcom-2026-11cisonews.neten2026-11-14Dexcom data breach letters: employee accounts accessed, SSNs exposed for some and health details for others https://www.cisonews.net/incidents/fandango-media-2026-11cisonews.neten2026-11-14Fandango data breach letter: card numbers and CVVs from its ticket checkout page, October 8 to 11, 2026 https://www.cisonews.net/incidents/icw-group-2026-11cisonews.neten2026-11-14ICW Group data breach letter: social engineering of one employee in May 2026 reached claimant data https://www.cisonews.net/incidents/mpowerhealth-2026-11cisonews.neten2026-11-14MPOWERHealth data breach letter: a June 2025 network intrusion, patient files identified 16 months later https://www.cisonews.net/incidents/plant-construction-2026-11cisonews.neten2026-11-14Plant Construction data breach letter: files downloaded September 8 to October 15, 2026, with SSNs https://www.cisonews.net/incidents/employer-solutions-staffing-group-2026-11cisonews.neten2026-11-14Employer Solutions Staffing Group data breach letter: files taken January 13, 2026, SSNs listed in Vermont https://www.cisonews.net/incidents/levin-sedran-berman-2026-11cisonews.neten2026-11-14Levin Sedran & Berman data breach letter: files taken in October 2025, notices sent 13 months later https://www.cisonews.net/incidents/southwire-2026-11cisonews.neten2026-11-14Southwire data breach: files taken November 2025 to January 2026, health plan notice November 12 https://www.cisonews.net/incidents/pch-digital-2026-11cisonews.neten2026-11-14Publishers Clearing House (PCH Digital) data breach letter: legacy network accessed February 4 to 18, 2026 https://www.cisonews.net/incidents/uber-technologies-2026-11cisonews.neten2026-11-14Uber data breach letter: a service provider's stolen credentials opened Uber data in October 2026 https://www.cisonews.net/incidents/baker-tilly-2026-11cisonews.neten2026-11-14Baker Tilly data breach letter: client data taken from a third-party provider's platform in September 2026 https://www.cisonews.net/incidents/kalahari-management-2026-11cisonews.neten2026-11-14Kalahari Resorts data breach letter: employee Social Security numbers after an October 2026 network intrusion https://www.cisonews.net/incidents/victorias-secret-2026-11cisonews.neten2026-11-14Victoria's Secret payroll account breach: fake login pages and changed direct deposits, October 9 to 16, 2026 https://www.cisonews.net/incidents/nephrology-associates-2026-09cisonews.neten2026-11-14Nephrology Associates data breach: ransomware on a Trumbull, Connecticut practice's server, September 8, 2026 https://www.cisonews.net/incidents/sharecare-health-data-services-2026-07cisonews.neten2026-11-14Sharecare Health Data Services breach: records request files taken around July 17, 2026 https://www.cisonews.net/incidents/amplifon-usa-2026-11cisonews.neten2026-11-14Amplifon data breach letter: files taken January 18 to February 8, 2026, letters sent in November https://www.cisonews.net/incidents/myriad-genetics-2026-11cisonews.neten2026-11-14Myriad Genetics cyber incident: testing and order systems paused after unauthorized access, November 2026 https://www.cisonews.net/incidents/point72-asset-management-2026-08cisonews.neten2026-11-14Point72 data breach: two accounts taken over by social engineering, July 31 and August 3, 2026 https://www.cisonews.net/incidents/vanguard-group-2026-11cisonews.neten2026-11-14Vanguard data breach letter: a July 2026 social engineering incident reached client files in Microsoft 365 https://www.cisonews.net/incidents/mavis-tire-supply-2026-11cisonews.neten2026-11-14Mavis Tire data breach letter: intrusion found June 18, 2025, letters filed November 3, 2026 https://www.cisonews.net/incidents/magnolia-management-2026-10cisonews.neten2026-11-14Magnolia Management data breach: assisted living operator's email account accessed in April 2026 https://www.cisonews.net/incidents/quest-diagnostics-2026-10cisonews.neten2026-11-14Quest Diagnostics data breach: patient records accessed through the Quanum LSM ordering system in October 2026 https://www.cisonews.net/guides/largest-healthcare-data-breaches-of-2025-reported-to-hhscisonews.neten2026-11-14Largest healthcare data breaches of 2025: every report on the HHS breach portal https://www.cisonews.net/guides/largest-data-breaches-affecting-indiana-residents-in-2026cisonews.neten2026-11-14Largest data breaches affecting Indiana residents in 2026: what the attorney general's report shows