A PDF — which stands for Portable Document Format — is an open standard document file extension created by Adobe. It has gained popularity in recent years because of the ease of use it affords ...

Researchers warn that attackers are relying more on malicious HTML files in their attacks, with malicious files now accounting for half of all HTML attachments sent via email.

Barracuda Networks found that HTML attachments were malicious more than double than the next leading type of file.

HTML files remain one of the most popular attachments used in phishing attacks for the first four months of 2022, showing that the technique remains effective against antispam engines and works ...