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 Ukrainian entities. The campaign, detected in May 2025, is tracked by the security outfit under the moniker InedibleOchotense, describing it

Cisco Warns of New Firewall Attack Exploiting CVE-2025-20333 and CVE-2025-20362

Cisco on Wednesday disclosed that it became aware of a new attack variant that’s designed to target devices running Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software releases that are susceptible to

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, to a prescriptive regulatory requirement. Crisis management or Tabletop exercises, for a long time relatively rare in the context of

ThreatsDay Bulletin: AI Tools in Malware, Botnets, GDI Flaws, Election Attacks & More

Cybercrime has stopped being a problem of just the internet — it’s becoming a problem of the real world. Online scams now fund organized crime, hackers rent violence like a service, and even trusted apps or social platforms are turning

Bitdefender Named a Representative Vendor in the 2025 Gartner® Market Guide for Managed Detection and Response

Bitdefender has once again been recognized as a Representative Vendor in the Gartner® Market Guide for Managed Detection and Response (MDR) — marking the fourth consecutive year of inclusion. According to Gartner, more than 600 providers globally claim to deliver

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 and execute custom malware. According to a new report from Bitdefender, the adversary is said to have enabled the Hyper-V

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 firewall configuration backup files. “The malicious activity – carried out by a state-sponsored threat actor – was isolated to the