The Rising Threat Of Email Attachments: Insights From Barracuda's 2025 Email Threats Report
Barracuda Networks, April 28,2025
In an era of increasingly sophisticated cyberthreats, understanding the evolving landscape of email-based attacks is crucial for organizations of all sizes. The new Barracuda 2025 Email Threats Report shines light on attackers' tactics with valuable insights to help you stay ahead of today's most pressing email security threats.
HTML files are the most dangerous attachments
One of the most striking findings from the report is that 23% of HTML attachments are malicious, making them the most weaponized type of text file. This statistic underscores a significant shift in how attackers are operating. Rather than relying solely on malicious links, cybercriminals are embedding harmful content within attachments to evade detection by traditional security measures. In fact, more than three-quarters of all detected malicious files were HTML files.