What is "cloudmark"

Cloudmark, Inc is a privately held company, San Francisco-based, providing protection against spam, viruses, phishing and spear phishing, threats that affect email and mobile messaging.

The company protects more than one billion subscribers for the world's largest carrier networks and ISPs worldwide, safeguarding 12 percent of email accounts and 20 percent of mobile accounts around the globe.

In addition to its San Francisco headquarters, it has offices in London, Paris and Tokyo and an international salesforce spanning additional countries.