Data Breach News | Latest Cybersecurity Reports – Veri Sızıntısı

Publications & Analyses

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

Two cybersecurity professionals have been sentenced to 4 years in prison for their role in BlackCat (ALPHV) ransomware attacks. Learn the full details here.
Argus Flow 01 May 2026

Cybersecurity Pros Get 4 Years for BlackCat Attacks

Two cybersecurity professionals have been sentenced to four years in prison for their participation in attacks by the notorious BlackCat ransomware group, also known as ALPHV. The verdict underscores the serious threat of industry insiders turning to cybercrime.

A major data breach at education giant PowerSchool opens a debate on the legal liability of its private equity owner. Millions of students' data is at risk.
Argus Flow 01 May 2026

PowerSchool Breach May Hold Private Equity Owner Accountable

A massive data breach at education technology giant PowerSchool has ignited an unprecedented legal debate in the cybersecurity world. With sensitive data of millions of students and parents leaked, the private equity firm that owns the company is now potentially facing legal liability. This development could fundamentally change how investors approach the cybersecurity of their portfolio companies.

Cherry Health has been targeted by the Rhysida ransomware group. 250 GB of data, including patient and employee SSNs and medical info, was allegedly stolen.
Argus Flow 29 Apr 2026

Cherry Health Targeted by Rhysida Ransomware Attack

Healthcare provider Cherry Health is experiencing major service disruptions following a cyberattack claimed by the Rhysida ransomware group. The attackers allege the theft of 250 GB of sensitive patient and employee data.

A new report shows 60% of over 200 Japanese firms that paid a ransom failed to recover their data. This highlights the significant risks of paying cybercriminals.
Argus Flow 29 Apr 2026

Japanese Firms Pay Ransom But 60% Fail to Recover Data

A new report reveals that over 200 Japanese companies paid attackers following ransomware incidents. Alarmingly, 60% of those who paid were unable to recover their data, highlighting the ineffectiveness of paying ransoms.

Application security firm Checkmarx confirmed a data breach from a supply chain attack, exposing customer data and source code. Learn the details and how to stay safe.
Argus Flow 29 Apr 2026

Checkmarx Confirms Data Stolen in Supply Chain Attack

Application security firm Checkmarx has confirmed a data breach resulting from a sophisticated supply chain attack. The incident reportedly led to the theft of customer data and portions of internal source code.

Medical device company Medtronic acknowledges a data breach after the ShinyHunters hacking group claimed to have stolen millions of records. Learn about the incident.
Argus Flow 29 Apr 2026

Medtronic Confirms Data Breach After ShinyHunters Claim

Medical device giant Medtronic has confirmed an IT systems breach. The confirmation follows claims by the notorious hacker group ShinyHunters, who allege they have accessed millions of company records.

The hacker group ShinyHunters has claimed responsibility for a data breach affecting 1.4 million users of the online learning platform Udemy. Learn about the leaked data and what to do.
Argus Flow 29 Apr 2026

ShinyHunters Claims Theft of 1.4M Records from Udemy

The notorious hacker group ShinyHunters has claimed to have stolen records belonging to 1.4 million users from the popular online learning platform Udemy. The allegedly leaked data includes names, email addresses, and hashed passwords.

Vimeo has confirmed a data breach impacting users due to a security incident at its third-party vendor, Anodot. Learn about the exposure and what steps to take.
Argus Flow 28 Apr 2026

Vimeo User Data Exposed in Anodot Vendor Breach

Video platform Vimeo has confirmed a data breach affecting its users. The incident stemmed from a security breach at its vendor, Anodot, a data anomaly detection company. Unauthorized access was gained to some customer and user data.

Video platform Vimeo has confirmed a data breach affecting user and customer information, including names, emails, and phone numbers. Learn what to do if you are affected.
Argus Flow 28 Apr 2026

Vimeo Confirms Data Breach Affecting Users and Customers

Video platform Vimeo has confirmed a significant data breach impacting its users and customers. The incident exposed personal information such as names, email addresses, and phone numbers. The company is currently investigating the breach and notifying affected individuals.

A 21-year-old hacker known as "HexDex" has been arrested by French police. The suspect is allegedly linked to over 100 data breaches.
Argus Flow 28 Apr 2026

French Police Arrest "HexDex" Hacker for 100 Breaches

French authorities have arrested a 21-year-old individual known by the alias "HexDex." The suspect is allegedly responsible for over 100 separate data breaches, a significant operation against cybercrime.

Medtronic, a leading medical device company, has confirmed a security breach after the ShinyHunters hacking group threatened to sell stolen source code and device data.
Argus Flow 28 Apr 2026

Medtronic Confirms Hack After ShinyHunters Data Leak Threat

Medical device giant Medtronic has confirmed a cyberattack after the hacking group ShinyHunters threatened to leak stolen data. The breach allegedly includes source code and device data.

Dozens of browser extensions have been found to be legally selling your browsing history and personal data. Learn what data is at risk and how you can protect yourself.
Argus Flow 28 Apr 2026

Browser Extensions Are Selling Your User Data

A new report reveals that dozens of widely used browser extensions are selling user data, such as browsing history and personal information, to third parties. This practice is legally disclosed in the extensions' privacy policies.