Incident: Qilin Ransomware Group Leads June Attacks Targeting Critical Sectors
Date of Incident (ET): Not Specified in Reporting
Date of Disclosure/Publication (ET): July 1, 2025
Summary: The Qilin ransomware group emerged as the most active operator in June 2025, claiming 86 victims across high-value sectors including telecommunications, healthcare, and transportation, utilizing a sophisticated ransomware-as-a-service model.
Source: cyble.com/blog/top-…
Incident: Pro-Russian Hacktivist Group CyberVolk Deploys New Ransomware
Date of Incident (ET): June 28, 2025
Date of Disclosure/Publication (ET): July 1, 2025
Summary: The hacktivist group CyberVolk released a new Go-based ransomware strain, with samples detected in the wild encrypting files with a “.CyberVolk” extension and leaving a text file ransom note.
Source: cyble.com/blog/top-…
Incident: Nucor Steel Halts Production Following Cyberattack and Data Theft
Date of Incident (ET): Not Specified in Reporting
Date of Disclosure/Publication (ET): June 30, 2025
Summary: Steel manufacturer Nucor confirmed a cyberattack compromised its IT systems, resulting in data theft and a temporary halt to production operations at multiple critical infrastructure facilities.
Source: research.checkpoint.com/2025/29th…
Incident: Trezor Hardware Wallet Discloses Phishing Attack via Support Portal Breach
Date of Incident (ET): Not Specified in Reporting
Date of Disclosure/Publication (ET): June 30, 2025
Summary: Cryptocurrency hardware wallet maker Trezor suffered a data breach of its third-party support system, enabling threat actors to send phishing emails from an official address to steal wallet seed phrases.
Source: research.checkpoint.com/2025/29th…
Incident: INC Ransom Group Claims Attack on Ahold Delhaize, Leaks Data
Date of Incident (ET): Not Specified in Reporting
Date of Disclosure/Publication (ET): June 30, 2025
Summary: The INC Ransom group claimed responsibility for an attack against global food retailer Ahold Delhaize, publishing samples of allegedly stolen sensitive data including financial and medical information.