When it comes to email authentication standards, should you use DKIM, SPF, or both? We’re going to cover these terms, when you should use them, what they do—and how best to protect your email domains. Is it Either/Or—or Both? Should the battle really be SPF vs. DKIM? While not mandatory, it’s highly recommended to use both SPF and DKIM to protect your email domains from...

What is email spoofing, how does it work, and why is it so dangerous to your company? We’ll explain everything you need to proactively stop attackers from spoofing your email address. Email Spoofing: What Is It? Email spoofing is when a fraudster forges an email header’s ‘From’ address to make it appear as if it was sent by someone else, usually a known contact like a high...

Amid a troubling rise in zero-day phishing attacks, recent research suggests that some companies may be making an ill-advised shift away from blocking advanced email threats to responding to them post-delivery. If true, the capitulation couldn't come at a worse time. Since January, cybercriminals taking advantage of the COVID-19 outbreak have been targeting businesses and...

This post originally appeared on the Armadillo Blog and has been lightly edited for clarity.   Most organisations have been successful in blocking malicious emails targeted at their employees, at least to some extent. Various on-premise and cloud providers exist to take care of anti-spam, anti-virus, reputation scores, and advanced features such as sandboxing of executables. As...