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HOW ICG HELPS PROTECT YOU AGAINST TODAY’S EMAIL-BORNE THREATS

September 4, 2021

Email remains popular among hackers as a means of distributing malware and
launching phishing and impersonation attacks. In a survey of IT decision-makers
and C-level executives conducted by research firm Vanson Bourne, 56 percent of
respondents said that phishing attacks continue to increase. Over the past year,
94 percent had seen untargeted phishing attacks and 92 percent had seen targeted
spear-phishing attacks. Most respondents also reported seeing email-based
impersonation attacks asking the recipient to initiate wire transfers (87
percent) or disclose confidential information (85 percent).

Many of the IT leaders surveyed lack confidence that they can combat these
attacks. Nearly 60 percent said their organization is likely to suffer a
negative business impact because of an email-borne attack in 2018.

Part of the problem is that legacy email security systems are unable to spot the
latest threats. Many of these tools use traditional signature-based techniques —
they look for the “fingerprints” of known types of malware and spam and block
those that are detected. As threats rapidly evolve, however, these tools simply
can’t keep up.

A recent quarterly Email Security Risk Assessment (ESRA) from Mimecast shows how
critical this situation has become. As part of the assessment, Mimecast
inspected more than 95 million emails, all of which had passed through incumbent
email security systems. The ESRA reports on the effectiveness of these systems
at detecting and blocking email-borne threats.

The ESRA found that these systems missed 11,653 emails containing known malware,
which should be the easiest to identify as they are detectable by commonly
deployed antivirus technologies. Additionally, the report noted a continued
challenge of protecting organizations from unknown malicious attachments,
dangerous files types, impersonation attacks and even basic spam.

More than 14 million pieces of spam, 9,992 emails containing dangerous file
types and 849 unknown emails with malware attachments were missed by the
incumbent providers and delivered to users’ inboxes. Most notably, 11,653 emails
with known malicious attachments passed through these systems, an increase of
532 percent in comparison to the previous quarter’s assessment. One email
security product missed more than 83 percent of known malware attachments.
Impersonation attacks also continue to be a problem, with one cloud email
platform missing more than 76 percent of these attacks.

The key to preventing email-borne attacks is to employ a layered security
approach that includes multiple antivirus and antispam techniques along with
advanced analytics and threat intelligence. That’s why ICG uses the Mimecast
email security platform. Mimecast features three separate AV engines, file
sandboxing and more than 100 analytic techniques using both in-house and
third-party threat data sources.

Mimecast also continues to enhance its technology through strategic partnerships
and acquisitions. In July, the company acquired Solebit, which provides a fast,
accurate and computationally efficient approach to the identification and
isolation of zero-day malware and other unknown threats. In June, Mimecast
announced its partnership DMARC Analyzer to more effectively block
impersonation, phishing, spoofing and malware attacks.

ICG’s cloud-based email service incorporates Mimecast Email Security with
Targeted Threat Protection to help keep email-borne threats out of our
customers’ networks. If you’re concerned about spam, malware, phishing and
impersonation attacks, we invite you to contact us for a confidential
consultation.

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