Kaspersky Security Bulletin 2025. Statistics

All statistics in this report come from Kaspersky Security Network (KSN), a global cloud service that receives information from components in our security solutions voluntarily provided by Kaspersky users. Millions of Kaspersky users around the globe assist us in collecting information about malicious activity. The statistics in this report cover the period from November 2024 through October 2025. The report doesn’t cover mobile statistics, which we will share in our annual mobile malware report.

During the reporting period:

• 48% of Windows users and 29% of macOS users encountered cyberthreats
• 27% of all Kaspersky users encountered web threats, and 33% users were affected by on-device threats
• The highest share of users affected by web threats was in CIS (34%), and local threats were most often detected in Africa (41%)
• Kaspersky solutions prevented nearly 1,6 times more password stealer attacks than in the previous year
• In APAC password stealer detections saw a 132% surge compared to the previous year
• Kaspersky solutions detected 1,5 times more spyware attacks than in the previous year

To find more yearly statistics on cyberthreats view the full report.

Kaspersky researchers have discovered new Mirage Kitten attacks using previously undocumented malware families: NodeRabbit in Node.js and PollCat in JavaScript.

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.

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.

Kaspersky researchers reveal previously undocumented malware attributed to Mirage Kitten (UNC1549, Smoke Sandstorm, Nimbus Manticore): NightLedger backdoor, ArcBridge, and BridgeHead tunneling tools.