What types of threats does Mimecast's Email Security specifically target?

Mimecast's Email Security specifically targets a range of threats that are prevalent in the world of email communication. This includes phishing attacks, which are attempts to deceive individuals into providing sensitive information, such as passwords or financial details. Ransomware is another significant threat that Mimecast addresses; it typically involves malicious software that encrypts a user's data and demands payment for its release. Additionally, spam—unwanted and often harmful emails—can clutter inboxes and also serve as a vector for various forms of malware. Malware refers to any software intentionally designed to cause damage to a computer, server, or network, and email is a common delivery method.

The other options do not accurately reflect the primary focus of Mimecast's Email Security solutions. Website vulnerabilities and network attacks are broader security concerns that go beyond the scope of email-specific threats. Internal data breaches, while serious, focus on issues arising from within an organization rather than external threats targeted via email. Finally, physical theft of devices pertains to hardware security rather than the email security domain that Mimecast specializes in. Thus, the correct response identifies the comprehensive suite of threats specifically managed by Mimecast's Email Security solutions.