Data Breach News | Latest Cybersecurity Reports – Veri Sızıntısı

Publications & Analyses

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

Duo Fined $830,000 Over User Data Breach
Argus Flow 23 Apr 2026

Duo Fined $830,000 Over User Data Breach

South Korean matchmaking service Duo has been hit with an $830,000 fine by the country's regulator for failing to protect user data. The penalty was imposed due to inadequate security measures leading to a data breach.

Rituals Cosmetics Discloses Customer Data Breach
Argus Flow 23 Apr 2026

Rituals Cosmetics Discloses Customer Data Breach

Dutch cosmetics giant Rituals has announced a data breach affecting its "My Rituals" membership database. An undisclosed number of customers had their personal information stolen.

Luxury Cosmetics Giant Rituals Discloses Data Breach
Argus Flow 23 Apr 2026

Luxury Cosmetics Giant Rituals Discloses Data Breach

The luxury cosmetics brand Rituals has announced a significant data breach. The incident exposed customer personal information, although the company states that financial data was not affected.

BlueLeaks 2.0 Dataset Will Not Be Sold by Hacktivist
Argus Flow 23 Apr 2026

BlueLeaks 2.0 Dataset Will Not Be Sold by Hacktivist

A hacktivist in possession of a sensitive dataset named "BlueLeaks 2.0" has decided not to sell the information. This sudden reversal has raised questions in the cybersecurity community about the dataset's fate.

Medibank Data Breach A Detailed Incident Review
Argus Flow 22 Apr 2026

Medibank Data Breach A Detailed Incident Review

Australian health insurer Medibank suffered a major ransomware attack, exposing the data of 9.7 million customers. The breach included highly sensitive personal and medical claims information.

National PTA Database Allegedly Leaked on Dark Web
Argus Flow 22 Apr 2026

National PTA Database Allegedly Leaked on Dark Web

Cybersecurity firm UpGuard has discovered a database allegedly belonging to the National Parent Teacher Association (PTA) posted for sale on a prominent dark web forum.

AngelSense GPS Tracker Data Leak Exposes User Info
Argus Flow 22 Apr 2026

AngelSense GPS Tracker Data Leak Exposes User Info

AngelSense, a company that produces GPS trackers for individuals with special needs, left a database containing sensitive user data unprotected. Cybersecurity firm UpGuard discovered and secured the database, which held GPS and AI data.

Security Firm APIsec ai Exposes Customer Data
Argus Flow 22 Apr 2026

Security Firm APIsec ai Exposes Customer Data

Cybersecurity company APIsec.ai has exposed customer data due to a misconfigured Elasticsearch database. The leak, discovered by UpGuard, contains data from the firm which claims to serve 80% of Fortune 100 companies.

Dow Jones Cloud Leak Exposes Customer Data
Argus Flow 22 Apr 2026

Dow Jones Cloud Leak Exposes Customer Data

Dow Jones, parent company of The Wall Street Journal, has exposed sensitive data belonging to millions of its customers. The massive leak was reportedly caused by a misconfigured cloud server.

US Voter Data Leak Exposes 198 Million Records
Argus Flow 22 Apr 2026

US Voter Data Leak Exposes 198 Million Records

UpGuard has discovered a misconfigured database belonging to a GOP analytics firm, exposing data for approximately 198 million American voters. This significant data leak includes sensitive information related to voter profiles.

Personal Data Leak Higher Education Marketing
Argus Flow 22 Apr 2026

Personal Data Leak Higher Education Marketing

Over one million individuals' personal information has been exposed online through a marketing network. This network targeted internet users interested in higher education, leading to a significant data leak.

Lawmakers Discuss Hospital Ransomware Terrorism Charges
Argus Flow 21 Apr 2026

Lawmakers Discuss Hospital Ransomware Terrorism Charges

Lawmakers are considering terrorism designations and homicide charges for individuals or groups behind ransomware attacks on hospitals. These discussions reflect growing concern over the life-threatening impact of such cyberattacks on critical healthcare infrastructure.