Hidden Threats: What You Don’t See Can Hurt You
When it comes to securing email and protecting against
cyberattacks, most organizations focus their attention and
resources on inbound emails. They invest in strong email
security gateway solutions designed to thwart incoming
phishing attempts, malware, impersonation attacks, malicious
URLs and attachments and other content generally categorized
This is a great start …
However, based on aggregate data of Mimecast customers, only
40% of email originates through inbound system traffic. The
other 60% of email traffic is introduced via internal-to-internal
(40%) or outbound (20%) email communications.
In other words, most companies are not inspecting and
securing up to 60% of their email traffic.
Emails sent between users or from internal users to third parties
such as customers and suppliers represent the majority of most
organizations’ email traffic; however, they are often left underprotected.
And as we’ve seen from past news events, it only takes
one successful attack to infiltrate an organization’s email
environment, leak sensitive information and cause longterm reputational damage.