Virtualization security: attack layers and misconfiguration impact
A detailed breakdown of misconfigurations in virtual environment cybersecurity as shown by examples of ransomware cases on ESXi and Proxmox environments.
Threat Response
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updated UPD
Critical RCE vulnerabilities in PHP (CVE-2026-109618, CVE-2026-109619)
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Kaspersky Security Bulletin 2025. Statistics
Kaspersky Security Bulletin contains statistics on various cyberthreats for the period from November 2024 to October 2025, which are based on anonymized data voluntarily provided by Kaspersky users via Kaspersky Security Network (KSN).
Reports
Mirage Kitten targeting aviation and FinTech sectors across the Middle East and Africa with a new malware set
Kaspersky researchers have discovered new Mirage Kitten attacks using previously undocumented malware families: NodeRabbit in Node.js and PollCat in JavaScript.
APT group HoneyMyte upgrades CoolClient: the backdoor gets a kernel-level Windows rootkit
Our experts discovered a new CoolClient backdoor variant with a kernel-mode rootkit driver that hides malicious processes, files, and network connections from security tools and threat analysts.
Armored Likho expands its cyber-espionage toolkit
Kaspersky experts break down a new Armored Likho campaign that poses as a fundraising efforts and delivers a new Still Toolkit aimed at stealing Telegram data and eavesdropping on victims.
Mirage Kitten targets Middle East and Africa region with new malware
Kaspersky researchers reveal previously undocumented malware attributed to Mirage Kitten (UNC1549, Smoke Sandstorm, Nimbus Manticore): NightLedger backdoor, ArcBridge, and BridgeHead tunneling tools.
