By appending just a few lines of HTML and CSS code, researcher Louis Dion-Marcil showed how an external sender could hide the very warning from an email message.

It can be daunting writing HTML from scratch especially if you haven’t written any HTML email code before. As… ...

New research shows that up to a half of all HTML email attachments are malicious, and not just because of a few massive campaigns.

A new targeted phishing campaign includes the novel obfuscation technique of using Morse code to hide malicious URLs in an email attachment.