Desktop and IoT malware report for Q3 2025 | Securelist
In Q3 2025:
Kaspersky solutions blocked more than 389 million attacks that originated with various online resources.
Web Anti-Virus responded to 52 million unique links.
File Anti-Virus blocked more than 21 million malicious and potentially unwanted objects.
2,200 new ransomware variants were detected.
Nearly 85,000 users experienced ransomware attacks.
15% of all ransomware victims whose data was published on threat actors’ data leak sites (DLSs) were victims of Qilin.
IT threat evolution in Q3 2025. Mobile statistics
According to Kaspersky Security Network, in Q3 2025:
47 million attacks utilizing malware, adware, or unwanted mobile software were prevented.
Trojans were the most widespread threat among mobile malware, encountered by 15.78% of all attacked users of Kaspersky solutions.
More than 197,000 malicious installation packages were discovered, including:
52,723 associated with mobile banking Trojans.
1564 packages identified as mobile ransomware Trojans.
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