Email Security Threats

From the moment files could be attached to emails, the threat of malware has existed. They are primarily spread through executable files or documents with macros. Malware can take many forms: viruses, keyloggers, rootkits and ransomware. The effects range from downtime and infected machines to loss of information, productivity, and money. And what’s worse, cybercriminals often re-infect the same victims over and over again. Nasty stuff, that malware.

Our Solution:

• Checks file attachments with antiviruses and destroys suspicious emails
• Automatically detects attached files or zipped archives and blocks according to banned categories
• Blocked by: ZeroScan, ZeroMalware

What was once a seldom deployed attack has now become commonplace. Spearphishing emails are hard to spot because they typically don’t include typical “danger” indicators like attachments, links to click, or files to download. Worse still, they look like they come from someone you trust, with short well-written messages, and with a signature you recognize. If you fall for it, the endgame is either a money transfer or your login credentials being stolen. Or both.

Other names: Business Email Compromise (BEC), CEO Scams, Whaling, Impersonation Attacks

Our Solution:

• Includes a spearphishing module designed to block ATO, BEC, and other targeted email attacks
• Protects against email spoofing by checking SPF, DKIM, and DMARC on all emails
• Employs specialized heuristics built, maintained, and updated by our experts every single day
• Blocked by: The Prefilter, ZeroScan, ZeroPhishing, ZeroPhishing Advanced

Ever get an email that just looked … a little off? That’s usually the first sign that you’ve gotten phished. Credential phishing emails look like legitimate emails from well-known brands of banks, airlines, credit card companies, media companies and hosting providers. These crafty forgeries aim to take you to a phishing website whose sole purpose is to harvest your login credentials.

Our Solution:

• Protects against domain impersonation by checking SPF, DKIM, and DMARC on all emails.
• Applies Machine Learning to detect the subtle differences of email threats
• Utilizes antiviral scanning for known content signatures
• Employs specialized heuristics built, maintained, and updated by our experts every single day.
• Blocked by: The Prefilter, ZeroScan, ZeroPhishing

Easily one of the most unexpected and debilitating types of attacks is the email DDoS. Imagine trying to get some work done when your inbox is being bombarded with 10 emails every second. It’s completely paralyzing. The content of the messages isn’t the issue, it’s the sheer volume that’s the problem.

Other names: message flood, subscription bombing

Our Solution:

• Our servers have built-in throttling measures to protect service integrity
• Our experts are always on-hand to assist directly with these cases. Each case is unique and will be handled as such.
• Blocked by: The Prefilter, ZeroScan

Sometimes they have scary names like Heartbleed, Spectre or Meltdown, but most don’t. They appear when people use software in “creative” ways and get unintended behaviors. Since zero-day threats can come from many places, we always have to be on the lookout.

Our Solution:

• Is managed by experts that know the technology inside and out
• Automatically detects attached files or zipped archives and blocks according to banned categories
• Checks all emails for RFC standards compliance
• Blocked by: The Prefilter, ZeroScan, ZeroMalware, ZeroPhishing