Daily Cybersecurity News Roundup – February 04, 2026

Stay updated with the latest cybersecurity news! This daily roundup covers critical vulnerabilities, emerging threats, and significant data breaches to keep you informed and secure in the ever-evolving digital landscape.

1. Italy Foiled Russia-Linked Cyberattacks on Embassies, Olympic Sites

Published: 2026-02-04

Italy has thwarted a series of cyberattacks targeting its foreign ministry facilities, including an embassy in Washington, as well as websites linked to the Winter Olympics and hotels in Cortina d’Ampezzo.

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2. Microsoft Develops Scanner to Detect Backdoors in Open-Weight Large Language Models

Published: 2026-02-04

Microsoft has built a lightweight scanner to detect backdoors in open-weight large language models by leveraging observable signals that flag tampering in model weights, code, or through model poisoning, aiming to enhance trust in AI systems.

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3. DEAD#VAX Malware Campaign Deploys AsyncRAT via IPFS-Hosted VHD Phishing Files

Published: 2026-02-04

A new malware campaign named DEAD#VAX uses IPFS-hosted VHD files, script obfuscation, and in-memory shellcode injection to deploy AsyncRAT without dropping decrypted binaries, bypassing detection and enabling remote control for surveillance and data theft.

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4. Vulnerabilities Allowed Full Compromise of Google Looker Instances

Published: 2026-02-04

The flaws dubbed LookOut can be exploited for remote code execution and data exfiltration.

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5. Big Breach or Smooth Sailing? Mexican Gov’t Faces Leak Allegations

Published: 2026-02-04

A hacktivist group claims a 2.3-terabyte data breach exposes the information of 36 million Mexicans, but no sensitive accounts are at risk, says government.

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6. Interlock Ransomware Uses New Tool To Kill EDR via Anti-Cheat Driver Flaw

Published: 2026-02-04

The Interlock ransomware group has evolved its tactics, deploying a novel process-killing tool called Hotta Killer to turn off endpoint detection and response (EDR).

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7. Ivanti’s EPMM is Under Active Attack, Thanks to Two Critical Zero-Days

Published: 2026-02-04

Ivanti’s Endpoint Manager Mobile (EPMM) is facing active attacks exploiting two critical zero-day vulnerabilities.

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8. Russian Hackers Weaponize Microsoft Office Bug in Just 3 Days

Published: 2026-02-03

Russian hackers quickly exploited a Microsoft Office vulnerability to create weaponized attacks within three days.

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