Data Breach News | Latest Cybersecurity Reports – Veri Sızıntısı

Publications & Analyses

Argus Flow releases, platform announcements, press updates, and cybersecurity analyses.

A graphical representation of the Qilin ransomware attack exploiting a vulnerability in a network firewall.
Argus Flow 21 Jul 2026

Qilin Ransomware Exploits Palo Alto Security Flaw

The Qilin ransomware group is exploiting a critical authentication bypass vulnerability (CVE-2026-0257) in Palo Alto Networks' PAN-OS software to breach networks and conduct double extortion attacks.

Clover Health logo in front of a broken padlock icon and computer code background
Argus Flow 21 Jul 2026

Clover Health Hit by Social Engineering Attack

Health technology company Clover Health Investments has announced a data breach following a social engineering attack that compromised employee accounts. Personal and health information were reportedly affected in the breach.

A cyber attack banner for Medtronic, featuring the ShinyHunters group logo and code symbolizing a data leak.
Argus Flow 21 Jul 2026

Medtronic Notifies 3.8 Million After ShinyHunters Attack

The medical device giant has confirmed that the personal and medical information of nearly 4 million patients was compromised in a cyberattack carried out by the notorious ShinyHunters group in April.

A symbolic cybersecurity attack image showing a hacker stealing 35 GB of data from Accenture.
Argus Flow 21 Jul 2026

Accenture Confirms Data Breach Hacker Claims 35 GB of Data

Consulting giant Accenture has confirmed a security breach after a hacker claimed to have stolen 35 GB of source code and cloud secrets. While the company states operations are unaffected, the nature of the stolen data raises serious concerns.

A conceptual image showing a broken padlock overlaid with computer code and the AssuranceAmerica logo
Argus Flow 21 Jul 2026

AssuranceAmerica Breach Exposes 7 Million Driver's Licenses

U.S. insurer AssuranceAmerica confirmed that a hack of an employee account led to the theft of driver's license data for nearly 7 million customers. Details of the March attack and the company's response are inside.

Estée Lauder logo with a blurred technology background representing an Oracle server room.
Argus Flow 21 Jul 2026

Estée Lauder Discloses Data Breach From Oracle Flaw

Cosmetics giant Estée Lauder has announced a data breach resulting from the exploitation of a vulnerability in its Oracle E-Business Suite system, used for HR operations. The attack is linked to a method previously used by the Clop ransomware group.

Lidl logo with a lock symbol on a computer screen in the background
Argus Flow 20 Jul 2026

Lidl Data Breach Affects Customers in Three Countries

Lidl has notified its online shop customers in Germany, Belgium, and the Netherlands about a cyberattack on a business partner that exposed their personal data. Financial information is reported to be safe.

A digital background representing an abstract artificial intelligence neural network
Argus Flow 20 Jul 2026

JadePuffer The First Fully LLM Driven Ransomware Attack

The cybersecurity world was shaken by the first ransomware attack reportedly conducted by AI agents, dubbed 'JadePuffer'. Attackers exploited a Langflow flaw to steal data from a production database and encrypt other systems.

The Ernst & Young logo on a background with a cybersecurity and data breach theme.
Argus Flow 20 Jul 2026

Ernst & Young Discloses Breach via Third-Party System

Auditing and consulting giant Ernst & Young has announced a data breach resulting from a cyberattack on a third-party support system. The breach reportedly exposed documents containing client tax information.

An illustration representing an autonomous AI agent moving across an abstract network.
Argus Flow 20 Jul 2026

Hugging Face Reveals Its Network Was Breached by an Autonomous AI Agent

Hugging Face, the giant platform in the AI and machine learning space, has announced a first-of-its-kind security breach: it was hacked by an autonomous AI agent. The attackers used this method to infiltrate the company's production infrastructure, gaining access to internal datasets and credentials.

Information Security Breach and Incident Response Notification
Announcements 02 Jul 2026

Information Security Breach and Incident Response Notification

It has been determined that the SMTP (Simple Mail Transfer Protocol) credentials of our [email protected] email address were compromised by unauthorized individuals on 29.06.2026. Following the detailed technical investigations we conducted today regarding the breach in question, the findings obtained and the actions taken are presented below for your information:

The Nissan logo overlaid on a cybersecurity concept graphic representing the data breach in the Oracle PeopleSoft system.
Argus Flow 30 Jun 2026

Nissan Employee Data Breached in Oracle PeopleSoft Hack

Automotive giant Nissan has confirmed that sensitive data of its current and former employees was breached in a cyberattack targeting a zero-day vulnerability in Oracle PeopleSoft software. The ShinyHunters group is believed to be behind the attack.