Zero Day ? or New Threat

The Hidden Dangers of .HTML Attachments

 By Eric Howes, KnowBe4's Principal Lab Researcher

Over the past six to nine months .DOC and .JS file attachments have dominated the news surrounding the rise in phishing attacks. The reasons are obvious and understandable: those two file types (usually packaged in .ZIP files) are commonly used to deliver extremely dangerous ransomware and banker trojans. Your organization's employees should be wary of another file type, however, that we are seeing delivered as a malicious attachment: .HTML files. Read more..