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The security stories that matter, explained by our team — with the concrete steps to take.

Latest headlines from security outlets

Collected every two hours from specialised publications — each link leads to the original article.

DataBreaches.net
DataBreaches.net Breaches & leaks

Japan hands over ‘Qilin’ hacker group member to Germany

JiJi reports: Japanese police have captured a Russian national believed to be a key member of the “Qilin” international hacker group and extradited him to Germ…

DataBreaches.net
DataBreaches.net Breaches & leaks

Denmark Central Person Register (CPR) Breach: Cyberattack Exposes Data of 8.8 Million

Rescana’s new report on a breach affecting the Denmark Central Person Register (CPR) summarizes the situation: On October 5, 2026, Danish authorities publicly …

DataBreaches.net
DataBreaches.net Breaches & leaks

ASOS customers receive ‘hack’ notification threatening leak

Sarah Butler reports: ASOS is investigating after users of its mobile app received a notification claiming hackers had “fully compromised” the online fashion r…

The Hacker News
The Hacker News Breaches & leaks

Wikimedia Says OpenAI Agents Tried to Compromise Etherpad and Use Wiki Tools as Proxies

The Wikimedia Foundation, which hosts Wikipedia, has confirmed that it has discovered activity by rogue OpenAI agents on its platforms, including unsuccessful …

BleepingComputer
BleepingComputer Breaches & leaks

Nikkei discloses breaches of employees’ Microsoft, Google email accounts

Over the weekend, Japanese publishing giant Nikkei disclosed that unknown attackers recently breached two employee email accounts and used one to send thousand…

BleepingComputer
BleepingComputer Breaches & leaks

Engineer sentenced for locking over 3,000 devices on employer network

A former core infrastructure engineer at an industrial company headquartered in New Jersey was sentenced to 32 months in prison for locking thousands of device…

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

OpenSSL Vulnerability Can Leak Server Memory Through DTLS

OpenSSL issued fixes on Sep 29, 2026 for an OpenSSL vulnerability that can send unrelated program memory to another party during secure connection setup.

OpenSSL

The Record
The Record Breaches & leaks

Wikimedia Foundation: OpenAI agents tried to edit pages and compromise notes tool

Beyond the potential misuses of its services, Wikimedia said activity by AI agents can be a drain on web platforms that are already operating with limited reso…

The Record
The Record Breaches & leaks

Alleged ShinyHunters member reportedly detained in Jordan, assisting law enforcement

Saif ‌al-Din Khader is cooperating with the FBI, reports said, as the bureau responds to a massive breach that exposed employee data.

The Record
The Record Breaches & leaks

Ukraine grocery chain ATB confirms cyberattack as hackers threaten to leak data

Ukraine’s largest grocery store chain, ATB, confirmed that it was hit by a cyberattack after hackers posted an extortion demand on its website.

The Record
The Record Breaches & leaks

University of Illinois Chicago affected by ransomware attack on medical school

A ransomware attack that affected the University of Illinois Chicago (UIC) College of Medicine resulted in the theft of some information from its servers.

BleepingComputer
BleepingComputer Breaches & leaks

Denmark population registry data breach affects 8.8 million people

Denmark's Central Population Register (CPR) is warning of a data breach that exposed the personal information of approximately 8.8 million registered individua…

DataBreaches.net
DataBreaches.net Breaches & leaks

Nueva EPS, Colombia’s largest regional healthcare promoting entity has allegedly been hacked (1)

Colombia’s largest health-promoting entity, Nueva EPS, has allegedly been hacked by an individual demanding $15 million not to leak the data. Colombia’s health…

BleepingComputer
BleepingComputer Breaches & leaks

South Korea probes bank breaches amid suspected AI-powered attacks

South Korea's Financial Services Commission (FSC) held an emergency meeting following a series of cyberattacks targeting financial institutions in the country.…

The Hacker News
The Hacker News Breaches & leaks

⚡ Weekly Recap: NetScaler and FortiMail 0-Days, AI Coding Leaks, Spectre v2 and Ransomware Arrests

A blank field. A public repo. One reply to an email. A box left exposed. None of this sounds dramatic, which is partly the problem. This week’s threats keep fi…

Citrix Fortinet

DataBreaches.net
DataBreaches.net Breaches & leaks

Hackers Breached Propulsion System of U.S.-Bound Oil Tanker

Seen on Homeland Security Today: FBI and US Coast Guard investigators have found evidence that hackers accessed the propulsion system of an oil supertanker as …

DataBreaches.net
DataBreaches.net Breaches & leaks

Daiwa Securities says info on 110,000 clients may have been leaked in vendor incident

Takashi Nakamichi and Ryo Horiuchi report that Daiwa Securities, Japan’s second-largest brokerage and investment banking firm, is responding to a breach at one…

DataBreaches.net
DataBreaches.net Breaches & leaks

Ransomware group threatens to leak customer data from top insurance companies in South Africa

Luis Monzon reports: Ransomware-as-a-service group The Gentlemen threatened to leak data belonging to insurance companies LegalWise and Samwumed, with more Sou…

DataBreaches.net
DataBreaches.net Breaches & leaks

South Korea’s President Lee Jae Myung orders thorough probe into data breaches at local banks

Lee Hyo-jin reports: President Lee Jae Myung on Sunday ordered a thorough investigation into a string of recent data breaches at financial institutions, as art…

DataBreaches.net
DataBreaches.net Breaches & leaks

Slate Valley Unified School District voted not to pay ransom demand; Kairos likely to leak data

The Slate Valley Unified School District in Fair Haven, Vermont, has been responding to a security incident since September 3. On October 2, Kairos threat acto…

DataBreaches.net
DataBreaches.net Breaches & leaks

Italy’s Data Protection Authority fines IQVIA €7 million over data protection breach

The following is a machine translation of a press release by Italy’s privacy guarantor: Healthcare data: The Privacy Guarantor fines IQVIA 7 million euros. The…

DataBreaches.net
DataBreaches.net Breaches & leaks

ShinyHunters hacker “Rey,” allegedly involved in FBI data theft, detained in Jordan

Jana Winter, Raphael Satter, and A.J. Vicens report: A key member of the ShinyHunters hacking group, ‌which claims to have stolen data on every FBI employee, w…

The Hacker News
The Hacker News Breaches & leaks

Warlock Exploits SharePoint Flaws to Disable Security Tools and Deploy Ransomware

The suspected China-linked threat actor known as Warlock is still continuing to weaponize Microsoft SharePoint vulnerabilities, likely both old and new, in att…

Microsoft 365

The Hacker News
The Hacker News Breaches & leaks

Police Arrest 16-Year-Old Suspected of Running KillSec, Seize Ransomware Leak Site and Servers

Police in Spain have arrested a 16-year-old whom investigators suspect of running the KillSec ransomware group. KillSec is accused of stealing data from organi…