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MUST READ

Stealth backdoor found in WordPress mu-Plugins folder

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U.S. CISA adds CrushFTP, Google Chromium, and SysAid flaws to its Known Exploited Vulnerabilities catalog

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U.S. CISA urges FCEB agencies to fix two Microsoft SharePoint flaws immediately and added them to its Known Exploited Vulnerabilities catalog

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Sophos fixed two critical Sophos Firewall vulnerabilities

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French Authorities confirm XSS.is admin arrested in Ukraine

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Microsoft linked attacks on SharePoint flaws to China-nexus actors

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Cisco confirms active exploitation of ISE and ISE-PIC flaws

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SharePoint under fire: new ToolShell attacks target enterprises

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CrushFTP zero-day actively exploited at least since July 18

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Hardcoded credentials found in HPE Aruba Instant On Wi-Fi devices

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MuddyWater deploys new DCHSpy variants amid Iran-Israel conflict

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U.S. CISA urges to immediately patch Microsoft SharePoint flaw adding it to its Known Exploited Vulnerabilities catalog

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Microsoft issues emergency patches for SharePoint zero-days exploited in "ToolShell" attacks

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SharePoint zero-day CVE-2025-53770 actively exploited in the wild

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Singapore warns China-linked group UNC3886 targets its critical infrastructure

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U.S. CISA adds Fortinet FortiWeb flaw to its Known Exploited Vulnerabilities catalog

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SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 54

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Security Affairs newsletter Round 533 by Pierluigi Paganini – INTERNATIONAL EDITION

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Radiology Associates of Richmond data breach impacts 1.4 million people

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Fortinet FortiWeb flaw CVE-2025-25257 exploited hours after PoC release

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Chrome extensions

Pierluigi Paganini October 25, 2022
Dormant Colors campaign operates over 1M malicious Chrome extensions

A new malvertising campaign, code-named Dormant Colors, is delivering malicious Google Chrome extensions that hijack targets’ browsers. Researchers at Guardio Labs have discovered a new malvertising campaign, called Dormant Colors, aimed at delivering malicious Google Chrome extensions. The Chrome extensions hijack searches and insert affiliate links into web pages. The experts called the campaign Dormant […]

Pierluigi Paganini December 06, 2021
Magnat malvertising campaigns spreads malicious Chrome extensions, backdoors and info stealers

Experts spotted a series of malvertising campaigns using fake installers of popular apps and games to deliver a backdoor and a malicious Chrome extension. Talos researchers spotted a series of malvertising campaigns using fake installers of popular apps and games as a lure to trick users into downloading a new backdoor and an undocumented malicious […]

Pierluigi Paganini December 17, 2020
Experts spotted browser malicious extensions for Instagram, Facebook and others

Avast researchers reported that three million users installed 28 malicious Chrome or Edge extensions that could perform several malicious operations. Avast Threat Intelligence researchers spotted malicious Chrome and Edge browser extensions that were installed by over 3 million users. The extensions were designed to steal user’s data (i.e. birth dates, email addresses, and active devices) and […]

Pierluigi Paganini January 16, 2018
Four malicious Chrome extensions affected over half a million users and global businesses

Four malicious Chrome extensions may have impacted more than half million users likely to conduct click fraud or black search engine optimization. More than half million users may have been infected by four malicious Chrome extensions that were likely used to conduct click fraud or black search engine optimization. According to ICEBRG, the malicious extensions […]

Pierluigi Paganini August 17, 2017
Cyber Criminals Hijack Chrome Extensions and put 4.7 Million Users at Risk

Developer accounts of popular chrome extensions being hijacked by cyber criminals, over 4.7 million users are at a risk of cyber attack. Over 4.7 million users could be at risk after being exposed to malicious adverts and credentials theft due to developer accounts of popular chrome extensions being hijacked by cyber criminals. A phishing campaign […]

Pierluigi Paganini April 26, 2017
Four Essential Security & Privacy Extensions for Chrome

Here are the top four extensions for the Chrome browser to keep your online activity safe, secure and private. The recent global wave of cybercrimes, particularly via exploiting loopholes in many leading browsers, has put internet privacy and online security directly in the line of fire. Internet users, in general, are worried about securing their […]

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    recent articles

    Stealth backdoor found in WordPress mu-Plugins folder

    Malware / July 24, 2025

    U.S. CISA adds CrushFTP, Google Chromium, and SysAid flaws to its Known Exploited Vulnerabilities catalog

    Hacking / July 24, 2025

    U.S. CISA urges FCEB agencies to fix two Microsoft SharePoint flaws immediately and added them to its Known Exploited Vulnerabilities catalog

    Hacking / July 23, 2025

    Sophos fixed two critical Sophos Firewall vulnerabilities

    Security / July 23, 2025

    French Authorities confirm XSS.is admin arrested in Ukraine

    Cyber Crime / July 23, 2025

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