The CTO of Barracuda, Fleming Shi, said that the HTML threats are being distributed via countless individual attacks, rather than a handful of mass events. On March 7, there were 672,145 malicious HTML artifacts detected in total, comprising 181,176 different items. This means that around a quarter (27%) of the detected files were unique and the rest were repeat or mass deployments of those files. However, on March 23, almost nine in ten (85%) of the total 475,938 malicious HTML artifacts were unique – which means that almost every single attack was different.
The figures are pointing to HTML attachments remaining one of the most common ways to deliver malware through email. The blog concludes that it’s pivotal for businesses to have the right security solutions set up. This means having effective, AI-powered email protection in place that can evaluate the content and context of an email beyond scanning links and attachments.
Multi-factor authentication, zero-trust access controls, as well as automation in response and attack remediation, is also essential to any organization’s cybersecurity tech stack, right next to employee training, Shi concluded.