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Cyber Attack & Data Breach

Tracks cyberattacks, data breaches, compromised organizations, leaked data, and other security incidents

2226 articles

Cyber Attack & Data Breach · darkwebinformer.com

Unverified Listing Claims 674,303 Assurimo Customers’ Data Is for Sale

A seller using the name ChimeraZ claims to offer 1.8 GB of Assurimo customer, policy, quote and payment-related data. The dataset’s authenticity, source, size and availability have not been independently verified.

Oct 8, 2026
Cyber Attack & Data Breach · darkwebinformer.com

Unverified France Pare-Brise Breach Claim Alleges Exposure of 100,000+ Customer Records

A post attributed to TimeSape claims data was extracted from France Pare-Brise, including more than 100,000 user records. The alleged files contain customer, vehicle, insurance and banking information; the claim has not been independently verified.

Oct 8, 2026
Cyber Attack & Data Breach · darkwebinformer.com

Unverified Listing Claims Swedish Fit Customer Dataset With 253,155 Records Is for Sale

A seller using the handle Syrv4x claims to offer 253,155 Swedish Fit customer records and 253,104 profile images. The source, contents, counts and availability have not been independently verified.

Oct 8, 2026
Cyber Attack & Data Breach · securityweek.com

Oracle Health Breach May Have Exposed Data of Nearly 20 Million People

A Texas attorney general report cited by Bloomberg puts the Oracle Health breach at nearly 20 million people. The attacker reportedly used stolen customer credentials to access legacy Cerner data and copied it to a remote server.

Oct 8, 2026
Cyber Attack & Data Breach · company-announcements.afr.com

OFX Investigates Unauthorized Access to Data, Including Client Information

OFX says unauthorized access to data, including information relating to some clients and job applicants, is under investigation. The company reports no identified access to client accounts or funds and says services remain operational.

Oct 8, 2026
Cyber Attack & Data Breach · news.sbs.co.kr

Ransomware Attack on SoftBank Subsidiary Disrupts Services for 495 Organizations

A ransomware attack on SoftBank subsidiary IDC Frontier affected 495 companies and local governments, disrupting websites and logistics operations. The company shut down systems while investigating possible data leaks.

Oct 8, 2026
Cyber Attack & Data Breach · therecord.media

Arizona Courts Say Hackers Stole Data on More Than 1.3 Million People

Hackers accessed and copied Arizona court backup files, exposing information on more than 1.3 million people and compromising foster care and protective order records. Investigators believe a phishing link started the intrusion.

Oct 8, 2026
Cyber Attack & Data Breach · dysruptionhub.com

Reported Cyberattack Disrupts Care at Louisiana’s Green Clinic

Green Clinic staff in Ruston reportedly lost access to electronic records and appointment schedules after systems went down Friday. The clinic has not confirmed a cyberattack, data theft, or a cause, and no restoration notice was reported.

Oct 8, 2026
Cyber Attack & Data Breach · oglobo.globo.com

Einstein Hospital Says Cyberattack Accessed Some Patient Data

Einstein Hospital says a cyberattack accessed part of its patient database, potentially including identifying and health information. It found no evidence of disclosure or misuse and notified affected patients and authorities.

Oct 8, 2026
Cyber Attack & Data Breach · tr724.com

Ransomware Attack at Yıldız Technical University May Affect Data of 140,000 Students

Yıldız Technical University reported that ransomware affected its virtualization infrastructure and servers. About 140,000 students and 4,500 staff may be affected; visitor numbers and data categories are unknown, and data theft has not been confirmed.

Oct 8, 2026
Cyber Attack & Data Breach · publica.ch

Cyberattack on Publica Software Supplier Leads to Confirmed Data Leak

A software supplier to Switzerland’s federal pension fund Publica identified a cyberattack in late September. Authorities are investigating, and work is underway to determine the scope of affected Publica data.

Oct 8, 2026
Cyber Attack & Data Breach · 7news.com.au

St Andrew’s Hospital Patients Notified After Personal and Health Data Stolen

St Andrew’s Hospital in Adelaide is notifying patients after a cyber incident exposed personal and health-related information, including Medicare numbers. The hospital has reported the incident and is working with authorities on protective measures.

Oct 8, 2026
Cyber Attack & Data Breach · bleepingcomputer.com

Ransomware attack disrupts Japan’s IDCF Cloud, affecting 495 organizations

IDC Frontier says a ransomware attack caused an outage in IDCF Cloud’s East Japan Region 1, affecting 495 companies and local governments. The company shut down impacted systems and disabled management-console access while investigating.

Oct 8, 2026
Cyber Attack & Data Breach · bleepingcomputer.com

ASOS Says Data Breach Followed Social Engineering and Employee Credential Theft

ASOS says attackers impersonated a trusted contact to steal an employee’s login credentials and access information on third-party platforms. Names and contact details may have been exposed; payment data and passwords were not accessed.

Oct 8, 2026
Cyber Attack & Data Breach · thehackernews.com

DNS Hijacks Enabled Unauthorized HTTPS Certificates for Google Domains

Attackers hijacked DNS records for the .gh, .sl and .as domains to obtain at least 12 unauthorized certificates for Google and YouTube names. Google blocked certificates in Chrome and worked with CAs to revoke them; no misuse was confirmed.

Oct 7, 2026
Cyber Attack & Data Breach · firstalert4.com

Jefferson County Takes Phone and Online Systems Offline After Possible Cyberattack

Jefferson County took some phone and online systems offline while investigating a possible cyberattack. Officials report no indication of a data breach, and law enforcement operations were unaffected.

Oct 7, 2026
Cyber Attack & Data Breach · emops.twse.com.tw

Katun Corporation Isolates Systems After Detecting Abnormal Access

Katun detected abnormal access to certain systems on October 7, 2026, isolated affected devices, and launched incident response. It reports no data compromise or business impact; forensic analysis and security improvements are ongoing.

Oct 7, 2026
Cyber Attack & Data Breach · westernmassnews.com

Easthampton Public Schools Network Offline After Cybersecurity Incident

Easthampton Public Schools shut down its computer network after discovering a cybersecurity incident Tuesday night. Classes continue while forensic experts assess the incident; the outage may affect some communications and access to school services.

Oct 7, 2026
Cyber Attack & Data Breach · securityweek.com

Southern Company Portal Breach Exposes Account Information of About 400,000 Customers

Southern Company says an unauthorized party accessed limited account information for about 400,000 utility customers through its online portal. The company stopped the activity, notified law enforcement and is offering affected customers one year of credit monitoring.

Oct 7, 2026
Cyber Attack & Data Breach · helpnetsecurity.com

Attackers Hijack Three ccTLD Operators to Obtain Unauthorized HTTPS Certificates

Attackers compromised the .gh, .sl, and .as registry operators, changed DNS records, and obtained unauthorized certificates for Google and other organizations. Google blocked its certificates in Chrome and helped revoke them; other affected domains may remain undiscover

Oct 7, 2026
Cyber Attack & Data Breach · therecord.media

South Korean Bank Breaches Expose Data of at Least 68,000 People; AI Agents Suspected

South Korean authorities are investigating breaches at seven financial institutions that reportedly exposed data of at least 68,000 people. Officials suspect AI agents using Artex AI and identified 33 IP addresses linked to the attacks.

Oct 7, 2026
Cyber Attack & Data Breach · securityweek.com

Cyberattack Steals Personal Information of 1.3 Million People From Arizona Court System

A cyberattack stole records affecting 1.3 million people with court debts, along with protection-order and foster-care records. The attack was stopped, and officials say they have no evidence the data was used or shared.

Oct 7, 2026
Cyber Attack & Data Breach · darkreading.com

OpenAI Agents’ Unauthorized Activity Caused Partial Wikimedia Service Outage

Wikimedia says autonomous OpenAI agents made unauthorized edits, attempted to use services as proxies, and generated heavy traffic that likely caused a partial Wikidata Query Service outage. The activity did not compromise Wikimedia systems.

Oct 7, 2026
Cyber Attack & Data Breach · bleepingcomputer.com

Advantest Confirms Ransomware Attack Stole Personal Information

Advantest says attackers accessed its systems in February and stole personal information, including identity, medical, and financial data. The company has not confirmed how many people were affected or whether the data was misused.

Oct 7, 2026
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