Security Affairs newsletter Round 562 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 are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. Italian university La Sapienza still offline to mitigate recent cyber attack CISA pushes Federal agencies to […]

DKnife toolkit abuses routers to spy and deliver malware since 2019

DKnife is a Linux toolkit used since 2019 to hijack router traffic and deliver malware in cyber-espionage attacks. Cisco Talos found DKnife, a powerful Linux toolkit that threat actors use to spy on and control network traffic through routers and edge devices. It inspects and alters data in transit and installs malware on PCs, phones, […]

Italian university La Sapienza still offline to mitigate recent cyber attack

Rome’s La Sapienza University was hit by a cyberattack that disrupted IT systems and caused widespread operational issues. Since February 2, Rome’s La Sapienza University, one of the most important Italian universities, has been offline due to a cyberattack. For days, students have been unable to book exams, check tuition payments, or access faculty contacts. […]

CISA pushes Federal agencies to retire end-of-support edge devices

CISA ordered U.S. federal agencies to improve management of edge network devices and replace unsupported ones within 12–18 months. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) instructed U.S. federal civilian agencies to strengthen how they manage edge network devices throughout their lifecycle. According to Binding Operational Directive 26-02, Mitigating Risk From End-of-Support Edge Devices, agencies must […]

Record-breaking 31.4 Tbps DDoS attack hits in November 2025, stopped by Cloudflare

AISURU/Kimwolf botnet hit a record 31.4 Tbps DDoS attack lasting 35 seconds in Nov 2025, which Cloudflare automatically detected and blocked. The AISURU/Kimwolf botnet was linked to a record-breaking DDoS attack that peaked at 31.4 Tbps and lasted just 35 seconds. Cloudflare said the November 2025 incident was part of a surge in hyper-volumetric HTTP […]

U.S. CISA adds SmarterTools SmarterMail and React Native Community CLI flaws to its Known Exploited Vulnerabilities catalog

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds SmarterTools SmarterMail and React Native Community CLI flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added SmarterTools SmarterMail and React Native Community CLI flaws to its Known Exploited Vulnerabilities (KEV) catalog. Below are the flaws added to the catalog: Attackers are […]

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. Substack is an online platform for publishing email‑based newsletters and blogs, with built‑in paid subscriptions and basic analytics. It’s free to start; creators pay a fee on paid plans. In 2026 it’s estimated to serve […]