Assaf Harofeh Medical Center
October 1, 2025
•[ extortion, data leak, healthcare ]
Hospital hit during Yom Kippur; extortion demand ~$700,000; brief outage of shared records system reported; authorities probing possible data leak.
Kaufman County
October 1, 2025
•[ data leak, identity theft, government ]
A letter dated Oct 1 states personal data in Kaufman County systems may have been accessed; residents received 24 months of credit monitoring. This disclosure came three weeks before a second October incident, indicating repeated compromise pressure against the countys environment and elevating identity-theft risk even where misuse is not yet observed.
Georgetown Brewing Co.
October 1, 2025
•[ data leak ]
Class-action notice cites brewerys disclosure of a cybersecurity incident impacting nearly twenty thousand people with PII; vector not detailed.
Jennings O'Donovan
October 1, 2025
•[ data leak ]
Engineering firm Jennings O'Donovan in County Sligo, Ireland experienced unauthorized access to part of its IT system used for the governments defective block grant scheme. The intrusion occurred in early October 2025 and potentially exposed personal data of roughly 861 applicants, while financial systems remained secure. Authorities consider it consistent with financially motivated criminal activity.
Merkle, Inc. (Dentsu Group)
October 1, 2025
•[ data leak, ransomware ]
Dentsus US-based subsidiary Merkle disclosed a cyber incident discovered in October 2025 involving unauthorized access and data theft from HR and client systems; stolen information included employee, supplier, and client financial and personal records; certain systems were taken offline during response; no ransomware group claimed responsibility.
WhatsApp users in Bijnor, Uttar Pradesh
October 1, 2025
•[ malware, phishing, data leak ]
Several WhatsApp users in Bijnor, Uttar Pradesh had their Android phones compromised after downloading a fake wedding invitation via WhatsApp. The malware granted remote access, exposing personal messages, photos, and financial app data. Victims filed complaints with the Bijnor Cyber Crime Police Station; authorities believe multiple individuals across the district were affected.
GlobalLogic
October 1, 2025
•[ ransomware, data leak, extortion ]
cl0p exploited an Oracle-hosted cloud application used by GlobalLogic for HR data management, exposing approximately 10,000 employee records including names, email addresses, phone numbers, and employee identifiers, as part of a broader extortion campaign targeting Oracle cloud tenants.
Substack
October 1, 2025
•[ phishing, data leak, unauthorized access ]
Substack notified users of a data breach after it identified evidence on February 3, 2026 that an unauthorized third party accessed limited user data in October 2025. Substack stated that credit card numbers, passwords, and financial information were not accessed. The company did not disclose how access was obtained, but said it fixed the system issue that enabled it and warned users to be cautious of phishing. Reporting cited a database allegedly containing 697,313 records posted to a hacking forum, consistent with exposure of emails, phone numbers, and internal account metadata.
National Health Service (NHS UK)
September 29, 2025
•[ ransomware, data leak ]
Cl0p ransomware actors exploited an Oracle E-Business Suite zero-day vulnerability (CVE-2025-61882) as part of a broader campaign and contacted The Washington Post on 29 September 2025 claiming access to its Oracle EBS applications. A Maine Attorney General breach filing and subsequent reporting confirmed that Cl0p exfiltrated Washington Post data and that 9,720 individuals had their personal and financial information exposed, including names, bank account and routing numbers, Social Security numbers and tax IDs. The incident appears to be data-theft-focused with no confirmed operational disruption at the newspaper.
Richmond Behavioral Health Authority (RBHA)
September 29, 2025
•[ ransomware, data leak ]
Richmond Behavioral Health Authority (RBHA), a public mental health services provider for the City of Richmond, reported a ransomware attack that began on September 29, 2025 and was identified on September 30, after which RBHA said it removed the attacker from its network. Despite rapid eviction, RBHA disclosed that an unknown actor may have accessed sensitive information including names, Social Security numbers, passport numbers, and financial account and health information. Reporting stated RBHA told U.S. HHS that 113,232 individuals were affected. The Qilin ransomware group later claimed responsibility and published a large dataset allegedly stolen from RBHA, consistent with a double-extortion incident involving both encryption and data exfiltration.
Avnet
September 26, 2025
•[ data leak ]
Avnet confirmed unauthorized access to externally hosted database supporting EMEA sales tool; company says most stolen data unreadable without proprietary tool; samples include non-sensitive PII.
Kido Schools (nursery chain)
September 25, 2025
•[ ransomware, data leak ]
Hackers calling themselves Radiant stole sensitive child and parent data from Kido Schools, posting victims profiles online to extort a 600,000 ransom; after public backlash they blurred then deleted the leaked material.
Arizona Federal Public Defender’s Office
September 24, 2025
•[ ransomware, data leak ]
Ransomware detected Sept 24 2025 crippled Arizonas Federal Public Defender Office, encrypting decades of case files and deleting backups. Investigators suspectbut have not confirmeddata exfiltration. No threat group has claimed responsibility.
Margaritaville at Sea
September 23, 2025
•[ ransomware, data leak ]
Margaritaville at Sea reported that on September 23 a ransomware group identified as Lynx infiltrated company systems and exfiltrated sensitive passenger personal data and protected health information; no operational disruption or internal data loss was confirmed.
Oxford County
September 22, 2025
•[ ransomware, data leak ]
Oxford County in Ontario, Canada disclosed on 22 September 2025 that it had experienced a cybersecurity incident affecting its information systems. County IT staff detected unexpected activity, contained it, and engaged third-party experts to conduct a forensic investigation while keeping public services operating normally. Subsequent dark-web monitoring and local reporting linked the incident to the BrainCipher ransomware group, which claimed Oxford County as a victim and suggested that personal information on roughly 4,000 current and former employees may have been stolen.
Vitas Hospice
September 21, 2025
•[ data leak, third-party breach, healthcare ]
Vitas Hospice Services (Vitas Healthcare) detected a cybersecurity intrusion on 10/24/2025. According to the organizations breach notice and subsequent reporting, the threat actor gained access to certain Vitas systems by using a compromised third-party vendor account. The unauthorized access persisted from approximately 09/21/2025 through 10/27/2025, and the attacker downloaded files containing personal information of current and former patients. Exposed data elements included identifiers (name, address, phone number, date of birth), government identifiers (drivers license number and Social Security number), and protected health information such as medical and insurance details, plus next-of-kin contact information. Government breach tracking and reporting indicated 319,177 individuals were affected. Vitas stated it took steps to secure systems, investigate, and notify impacted individuals, though the specific malware or group responsible was not publicly identified.
BK Technologies
September 20, 2025
•[ data leak ]
BK Technologies reported an intrusion on Sept 20; attackers accessed and stole non-public data from compromised systems; company says impact is not material and mostly covered by insurance.
Thayer Hotel at West Point
September 19, 2025
•[ data leak ]
On 19 September 2025 the Thayer Hotel at West Point experienced unauthorized access to its computer systems, prompting a forensic investigation and containment measures. The hotel later confirmed that an Undetermined actor accessed systems holding data on roughly 33,053 individuals and that exposed information could include names, dates of birth, postal addresses, Social Security numbers, drivers license and passport numbers, state IDs, email addresses and some medical or financial data for guests and employees. A formal Notice of Data Security Incident dated 31 October 2025 describes the breach, and law firms have begun investigating potential claims while the hotel offers credit monitoring through Kroll.
Insightin Health
September 17, 2025
•[ data leak, unauthorized access, zero-day vulnerability ]
Insightin Health disclosed that an unauthorized party gained access to its GoAnywhere file-transfer tool by exploiting an unknown design flaw, potentially accessing data on a subset of servers between 09/17/2025 and 09/23/2025. Insightin said it identified unusual activity on 09/23/2025, stopped further access, and reviewed impacted files. On 02/12/2026, a health plan confirmed some members information was included. The data involved included name, health care provider name, insurance information, and member ID; no Social Security numbers or financial information were reported involved in the notice excerpt.
Undisclosed Major Technology Firm
September 15, 2025
•[ data leak, nation-state, AI-automated attack ]
Anthropic reported that GTG-1002, a China-linked nation-state threat actor, conducted an AI-automated intrusion campaign detected in mid-September 2025; one successful breach involved an undisclosed major technology firm where sensitive information was stolen via exploitation of application server infrastructure.
