The statistics used in this report were obtained using Kaspersky Security Network (KSN), a distributed antivirus network that works with various anti-malware protection components. The data was collected from KSN users who agreed to provide it. The statistics were collected from November 2017 to October 2018. The year in figures: 30.01% of user computers were subjected to at least one Malware-class web attack over the year. 554 159 621 unique URLs were recognized as malicious by web antivirus components.”]
Source: https://securelist.com/kaspersky-security-bulletin-2018-statistics/89145/