Malicious Files Evading Email Security Products
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How to Protect Your Business from Malicious Files Evading Email Security Products
Email is one of the most common and effective ways for cybercriminals to deliver malicious files to unsuspecting users. According to a recent study by BitDam, malicious files regularly bypass all of today's top email security solutions, leaving enterprises vulnerable to email-based attacks such as ransomware, phishing and malware.
The study, titled âThe Blind Spots of Email Securityâ, measured the ability of email security products to detect unknown threats at first encounter. By using fresh samples of malicious files from a number of sources and qualifying them as unknown threats, BitDam was able to calculate the miss rate at first encounter as well as the Time To Detect (TTD) of today's top email security products.
The results were alarming. The miss rate over seven weeks at the end of 2019 was about 23 percent for Office ATP while the TTD average was about 48 hours. However, close to 20 percent of missed unknown threats took four or more days to be detected and Office 365 ATP was 'blind' to selected unknown threats it did not detect at first encounter. For G-Suite, the miss rate was 35.5 percent and the TTD average was bout 26 hours with around 10 percent of missed unknown threats taking three days or more to be detected.
These large detection gaps provide proof of how enterprises are often unprotected against unknown threats and this can lead to successful email-based attacks that can cause data loss, productivity loss and business downtime.
How to Enhance Your Email Security
So how can you protect your business from malicious files evading email security products Here are some tips:
Use a multi-layered approach that combines different types of email security solutions, such as anti-spam, anti-virus, anti-malware, anti-phishing and sandboxing. This way, you can increase your chances of detecting and blocking malicious files before they reach your users.
Use advanced threat protection solutions that leverage artificial intelligence, machine learning and behavioral analysis to identify and stop unknown threats that traditional signature-based solutions may miss.
Use email encryption solutions that protect your sensitive data from unauthorized access or interception. Encryption can also help you comply with data privacy regulations and standards.
Use email archiving solutions that store your email data securely and allow you to recover it in case of an attack or a disaster. Archiving can also help you meet legal and regulatory requirements for email retention and discovery.
Educate your users on how to spot and avoid malicious emails. Teach them how to recognize common signs of phishing, such as spoofed sender addresses, urgent requests, grammatical errors and suspicious links or attachments. Encourage them to report any suspicious emails to your IT team or security provider.
Email is still the biggest security risk around today, but it doesn't have to be. By following these tips, you can enhance your email security and protect your business from malicious files evading email security products.
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