Cisco Firewalls Under Siege by New DoS Attacks; AI Supercharges Ransomware Campaigns

In the period covering November 6-7, 2025, the cybersecurity landscape was dominated by new attack variants targeting critical Cisco firewall vulnerabilities, causing persistent denial-of-service conditions. Concurrently, reports emerged detailing how threat actors are leveraging AI to drastically shorten ransomware attack timelines, with Europe becoming a primary target. Other major developments include a sophisticated global phishing campaign against Booking.com users, the discovery of Android spyware delivered via a Samsung zero-day, and a record-breaking month for software supply chain attacks driven by ransomware groups like Qilin and Akira.