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Hacker claims theft of data from 700,000 Substack users; Company confirms breach

Substack confirmed a data breach after a hacker leaked data from nearly 700,000 users, including email addresses and phone numbers.…

2 days ago

U.S. CISA adds a flaw in Cisco Unified Communications products to its Known Exploited Vulnerabilities catalog

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a flaw impacting Cisco Unified Communications products to its Known Exploited…

2 weeks ago

SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 80

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware…

3 weeks ago

Central Maine Healthcare data breach impacted over 145,000 patients

A cyberattack on Central Maine Healthcare exposed the personal, medical, and insurance data of about 145,000 patients. Central Maine Healthcare…

3 weeks ago

React2Shell under attack: RondoDox Botnet spreads miners and malware

RondoDox botnet exploits the critical React2Shell flaw (CVE-2025-55182) to infect vulnerable Next.js servers with malware and cryptominers. CloudSEK researchers warn that…

1 month ago

Security Affairs newsletter Round 553 by Pierluigi Paganini – INTERNATIONAL EDITION

A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs…

2 months ago

JPCERT/CC Reports Widespread Exploitation of Array Networks AG Gateway Vulnerability

Array Networks AG gateways have been under active exploitation since August 2025 due to a command injection flaw, JPCERT/CC warns.…

2 months ago

SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 73

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware…

2 months ago

Agentic AI in Cybersecurity: Beyond Triage to Strategic Threat Hunting

With a 4M cybersecurity worker shortage, agentic AI helps SOCs move beyond triage, enabling proactive security once thought impossible. With…

3 months ago

Security Affairs newsletter Round 548 by Pierluigi Paganini – INTERNATIONAL EDITION

A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs…

3 months ago

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