Intelligence and analytics gathered from the global network of service providers protected by Cloudmark automatically identifies zombie activities so providers can quarantine infected PCs and direct users to remediation service partners. With an average of 100 billion emails sent daily and 92% estimated to be some form of spam, Cloudmark’s data shows that over 90% of spam and phishing messages now originate from hijacked computers. The reputations of both ISPs and their subscribers are compromised as spam is traced back to the provider’s network, and often results in temporary blacklisting of networks.”]
Source: https://www.darkreading.com/attacks-breaches/cloudmark-out-for-blood