Western Orthopaedics
September 17, 2025
•[ data leak, ransomware, personal information ]
Western Orthopaedics confirmed that an unauthorized actor accessed files between September 17 and September 25, 2025, exposing personal, health insurance, medical billing, and financial information for 113,330 individuals. PEAR claimed responsibility and reportedly leaked the stolen data after ransom was not paid.
Advanced Diagnostic Imaging
April 30, 2026
•[ ransomware, electronic medical records, healthcare ]
Columbia Surgical Partners said it was unable to access electronic medical records after its parent company, Advanced Diagnostic Imaging, was hit by a reported ransomware attack. Available reporting confirms EHR-access disruption at Columbia Surgical Partners, but does not publicly confirm a responsible ransomware group, data theft, ransom demand, restoration timeline, or whether other ADI systems or sites were affected.
American Lending Center
July 24, 2025
•[ ransomware, internal network compromise, data breach ]
American Lending Center experienced a ransomware attack between July 24 and July 30, 2025, in which a threat actor compromised its internal network, executed ransomware, and accessed files that may have contained personal and sensitive information. No named ransomware group, confirmed encryption details, outage duration, or specific disrupted systems were publicly reported.
At least one unnamed victim organization
January 1, 2026
•[ social engineering, credential theft, MFA manipulation ]
MuddyWater, an Iran-linked APT associated with Iran's Ministry of Intelligence and Security (MOIS), used Microsoft Teams social engineering against an unnamed victim organization in early 2026. The attackers established remote access, stole credentials, manipulated MFA protections, deployed AnyDesk and DWAgent for persistence, moved laterally, harvested VPN configuration files and other sensitive data, and exfiltrated information. The attackers later sent extortion emails referencing Chaos ransomware and directed the victim to a Chaos leak site, but reporting said no file-encrypting ransomware was deployed, indicating the ransomware framing was likely a false flag for espionage activity.
ChipSoft
April 7, 2026
•[ ransomware, data breach, healthcare ]
ChipSoft was hit by a ransomware attack on April 7, 2026, causing hosted patient-facing and provider-facing digital services to be disconnected or taken offline while the company investigated and restored systems. ChipSoft later confirmed that personal and medical patient data from some Dutch healthcare customers had been stolen and said the stolen data was destroyed and not published.
Standard-Examiner
May 2, 2026
•[ ransomware, data leak, cyberattack ]
Qilin listed Standard-Examiner on its leak site on May 2, 2026 and claimed responsibility for a cyberattack, threatening to release sensitive data. Separate reporting noted earlier April production difficulties at the newspaper, but the Standard-Examiner had not publicly confirmed ransomware, data theft, or a connection between the printing disruption and Qilin's claim.
West Pharmaceutical Services
May 4, 2026
•[ ransomware, data exfiltration, encryption ]
West Pharmaceutical Services detected a ransomware intrusion on May 4, 2026. The company reported that attackers exfiltrated data and encrypted systems, prompting containment actions and disrupting manufacturing, shipping, and receiving operations across multiple global facilities. Public reporting did not identify the threat actor or specify the volume or type of exfiltrated data.
4VPS
May 2, 2026
•[ ransomware, infrastructure compromise, billing systems ]
4VPS disclosed on May 2, 2026 that an attack affected its website and billing systems. DataBreaches.net reported that The Gentlemen ransomware group later acknowledged that part of its own backend infrastructure had been compromised because some of it was hosted with 4VPS. Public reporting did not identify the attacker, the exact intrusion method, the total data volume, or the duration of service disruption.
Extant Aerospace
August 23, 2025
•[ ransomware, data breach, PII ]
Extant Aerospace detected ransomware activity on its network in August 2025, later confirming that personal data of over 3,000 U.S. individuals was exposed, including names, addresses, dates of birth and Social Security Numbers.
Adams County, Mississippi
April 17, 2026
•[ ransomware, government services, outdated systems ]
Adams County, Mississippi suffered a ransomware attack on April 17, 2026, after an outdated computer in the sanitation department allowed hackers to spread through the county network. The attack locked employees out of key services including court records, car tag payments, and public records processing; about 70% of systems were back online by the time of reporting, but full recovery was still underway.
Mitchell County
October 16, 2025
•[ ransomware, unauthorized access, theft of personal information ]
Mitchell County detected ransomware on its computer network on October 20, 2025, after unauthorized access between October 16 and October 20. The incident encrypted files, disrupted email and phone systems for several days, and involved the theft of personal information and protected health information from Department of Social Services records.
Ahold Delhaize USA Services, LLC
November 5, 2024
•[ ransomware, unauthorized access, employee data ]
Ahold Delhaize USA detected unauthorized access to U.S. business systems on November 56, 2024. The incident disrupted some U.S. brand, pharmacy, e-commerce, and internal systems, and INC Ransom later claimed responsibility. Ahold Delhaize said files were taken from internal U.S. business systems and later disclosed that 2,242,521 individuals were affected, mostly current and former employees, dependents, and beneficiaries; DataBreach indexed 417,907 rows tied to the breach. The company said customer payment and pharmacy systems were not believed to have been affected.
Kemper
April 15, 2026
•[ ransomware, social engineering, extortion ]
In April 2026, the American insurance holding company Kemper Corporation was named by the ShinyHunters ransomware group in a "pay or leak" extortion campaign. The attackers allegedly accessed Kemper's Salesforce environment via social engineering as part of a broader campaign targeting hundreds of organisations using the same method. The group later published tens of gigabytes of data they claimed included internal directory data, Salesforce records and Stripe payment logs. Among the 269k unique email addresses were names, phone numbers, physical addresses and partial payment card data including the last 4 digits, expiry dates and card brands. Kemper confirmed the incident and stated they had engaged third-party cybersecurity experts and notified law enforcement.
Coral Bay Nickel Corporation
April 2, 2026
•[ ransomware, server encryption, cyberattack ]
Coral Bay Nickel suffered ransomware encryption of two servers, but production systems remained unaffected and operations continued.
Saver
April 9, 2026
•[ ransomware, personal data, operational disruption ]
Saver was hit by ransomware on April 9, disrupting systems and phone lines while attackers accessed servers containing personal data.
Matsuyama Municipal Housing Management Center
February 3, 2026
•[ ransomware, data leak, resident information ]
Resident information for Matsuyama municipal housing was leaked after a ransomware attack affected servers used by the housing-management contractor.
TEIN
October 30, 2025
•[ ransomware, encryption, ransom note ]
TEIN found encrypted server files and a ransom note after a U.S. subsidiary reported it could not access an internal server.
Pricon Microelectronics, Inc.
April 17, 2026
•[ ransomware, data theft, LockBit 5.0 ]
Pricon Microelectronics suffered a ransomware attack affecting some servers; LockBit 5.0 later claimed data theft.
Medica Publishing Co., Ltd
March 13, 2026
•[ ransomware, data leak, personal information ]
A ransomware attack encrypted Medica Publishings systems on March 13, 2026, halting order processing, shipping, and customer inquiries, and the company later confirmed leakage of some personal and transaction-related information.
Seiko USA
April 18, 2026
•[ defacement, ransomware, data theft ]
The Seiko USA websites Press Lounge section was defaced with a ransom message claiming attackers had accessed the companys Shopify backend and stolen its customer database; the claimed data theft was not confirmed.
