Report: Spam, malware found in 13% of emails

Messages that contain spam and malware make up 13 percent of emails, according to a Mimecast report.

Mimecast, a cloud-based email management firm focused on security and archiving, inspected 142 million emails from 261,924 users delivered during an estimated 1,000 days using an email security risk assessment. In total, Mimecast determined 87 percent of the emails — 123 million — were safe.

Here's a breakdown of the remaining 19 million emails:

1. Total spam: 19,086,877

2. Impersonation attacks: 41,605

3. Malware attachments: 15,656

4. Dangerous file types: 13,176

To download Mimecast's report, click here.

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