Trojanized ESET Installers Drop Kalambur Backdoor in Phishing Attacks on Ukraine
A previously unknown threat activity cluster has been observed impersonating Slovak cybersecurity company ESET as part of phishing attacks targeting…
November 2025
From Tabletop to Turnkey: Building Cyber Resilience in Financial Services
Introduction Financial institutions are facing a new reality: cyber-resilience has passed from being a best practice, to an operational necessity,…
Hackers Weaponize Windows Hyper-V to Hide Linux VM and Evade EDR Detection
The threat actor known as Curly COMrades has been observed exploiting virtualization technologies as a way to bypass security solutions…
SonicWall Confirms State-Sponsored Hackers Behind September Cloud Backup Breach
SonicWall has formally implicated state-sponsored threat actors as behind the September security breach that led to the unauthorized exposure of…
Researchers Find ChatGPT Vulnerabilities That Let Attackers Trick AI Into Leaking Data
Cybersecurity researchers have disclosed a new set of vulnerabilities impacting OpenAI’s ChatGPT artificial intelligence (AI) chatbot that could be exploited…
Mysterious ‘SmudgedSerpent’ Hackers Target U.S. Policy Experts Amid Iran–Israel Tensions
A never-before-seen threat activity cluster codenamed UNK_SmudgedSerpent has been attributed as behind a set of cyber attacks targeting academics and…
CISA Adds Gladinet and CWP Flaws to KEV Catalog Amid Active Exploitation Evidence
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added two security flaws impacting Gladinet and Control Web Panel…
Microsoft Teams Bugs Let Attackers Impersonate Colleagues and Edit Messages Unnoticed
Cybersecurity researchers have disclosed details of four security flaws in Microsoft Teams that could have exposed users to serious impersonation…
Google’s AI ‘Big Sleep’ Finds 5 New Vulnerabilities in Apple’s Safari WebKit
Google’s artificial intelligence (AI)-powered cybersecurity agent called Big Sleep has been credited by Apple for discovering as many as five…
Microsoft Detects “SesameOp” Backdoor Using OpenAI’s API as a Stealth Command Channel
Microsoft has disclosed details of a novel backdoor dubbed SesameOp that uses OpenAI Assistants Application Programming Interface (API) for command-and-control…