Data Breach News | Latest Cybersecurity Reports – Veri Sızıntısı

Publications & Analyses

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

Over 48 million personal data records were leaked from a private intelligence search service. Learn about the incident, types of data exposed, and necessary precautions.
Argus Flow 21 Apr 2026

Private Intelligence Platform Data Leak

Over 48 million personal data records were leaked from a private intelligence search service. This significant incident resulted from vulnerabilities within the platform's systems. Various types of personal information are among the compromised data.

Los Angeles County 211 hotline exposed 3.5 million records, including names, addresses, and call notes detailing abuse and crisis reports. Learn about the impact.
Argus Flow 21 Apr 2026

LA County 211 Emergency Records Data Leak 3.5 Million

Los Angeles County's 211 service experienced a significant data exposure. Approximately 3.5 million emergency call records were affected. The exposed data includes names, addresses, and sensitive call notes detailing reports of abuse and crisis.

F5 Networks confirms government hackers gained long-term access to its systems, stealing source code and customer data. Notification was delayed due to national security.
Argus Flow 21 Apr 2026

F5 Networks Systems Compromised by Government Hackers for Long Term

Cybersecurity giant F5 Networks confirmed that government-backed hackers gained long-term access to its systems, stealing source code and customer data. The company, which provides defenses to most Fortune 500 firms, delayed notification on national security grounds at the DOJ's request.

BridgePay, a Florida-based payments platform, confirmed a ransomware attack. Services are offline, but the company states no card data was compromised. Get the details here.
Argus Flow 21 Apr 2026

BridgePay Confirms Ransomware Attack, Card Data Not Compromised

Florida-based payments platform BridgePay has confirmed a ransomware attack. While services are offline, the company states that no card data was compromised, ensuring customer payment information remains secure.

University of Mississippi Medical Center remains offline following a ransomware attack last Thursday, disrupting operations and potentially risking patient data. Learn more.
Argus Flow 21 Apr 2026

University of Mississippi Medical Center Still Offline After Ransomware Attack

The University of Mississippi Medical Center (UMMC) has been offline since a ransomware attack last Thursday. The incident continues to disrupt critical operations, potentially affecting patient services and risking sensitive healthcare data.

Semiconductor testing specialist Advantest confirms ransomware attack, deploying incident response. Details on data impact pending.
Argus Flow 21 Apr 2026

Advantest Hit by Ransomware Attack: Cybersecurity Incident

Advantest, a Japanese specialist in testing computer chips for major semiconductor manufacturers, has been impacted by a ransomware attack. The company confirmed it has deployed incident response protocols following the cybersecurity incident. Specific details on affected records or data types are currently undisclosed.

Europol successfully dismantles LeakBase, a major cybercrime forum. Stolen data trade disrupted, law enforcement gains access to platform data.
Argus Flow 21 Apr 2026

Europol Seizes LeakBase Cybercrime Forum

A global operation led by Europol has successfully shut down LeakBase, a prominent cybercrime forum known for facilitating data breaches. The seizure of the site and its data means that information previously traded or stored on the platform, including various types of compromised credentials and personal data, is now in law enforcement's possession.

Huntress reveals threat actor exploiting vulnerabilities and using Elastic Cloud SIEM to manage stolen data. Learn about the implications for cybersecurity.
Argus Flow 21 Apr 2026

Threat Actor Uses Elastic Cloud SIEM to Manage Stolen Data

Huntress researchers have uncovered a new campaign where a threat actor exploited vulnerabilities to steal data. The stolen information was then managed using Elastic Cloud SIEM, which served as a data hub for the attacker. Specific details regarding the type or volume of compromised data are currently unavailable.

France's ANTS ID system website was hit by a cyberattack, potentially exposing personal data from passport, ID, and driver's license applicants. Authorities are investigating the breach.
Argus Flow 20 Apr 2026

France ANTS ID System Website Hit by Cyberattack, Data Breach Possible

France's ANTS platform, handling applications for IDs, passports, and driver's licenses, experienced a cyberattack. Authorities detected the incident on April 15, warning that personal data of applicants may have been exposed. The extent of the breach and the number of affected individuals are currently under investigation.

Vercel reports a data breach stemming from an employee's AI tool use, leading to stolen OAuth tokens. Experts warn of new attack surfaces.
Argus Flow 20 Apr 2026

Vercel Data Breach Linked to Employee AI Tool Access and Stolen OAuth Tokens

Vercel experienced a data breach after an employee's interaction with an AI tool led to the compromise of OAuth tokens. This incident highlights how stolen OAuth tokens are becoming a significant new attack surface for lateral movement by threat actors.

Ericsson disclosed a data breach affecting 15,000 employees and customers due to a third-party compromise. Learn about the incident and its implications.
Argus Flow 20 Apr 2026

Ericsson Data Breach: 15,000 Employees and Customers Affected

Telecom giant Ericsson announced a data breach affecting 15,000 employees and customers. The incident occurred due to the compromise of a third-party service provider's systems. Personal data of the affected individuals may have been exposed.

Seiko USA's website was defaced by attackers claiming to have stolen its Shopify customer database. Attackers threaten to leak data if ransom isn't paid.
Argus Flow 20 Apr 2026

Seiko USA Website Defaced: Customer Data Theft Claimed

The Seiko USA website was defaced by cyber attackers. Attackers claim to have stolen the company's Shopify customer database and threaten to leak it unless a ransom is paid, potentially exposing customer information.