The Security Mentor

I hadn't heard about this before: RTF files are being used to distribute malware. RTF stands for Rich Text Format, and it used to be considered one of the safe file types that only carried data and couldn't carry a program.

You do get some warning that something strange is happening. If you open an infected document, you see an icon that you have to double-click to get the toxic payload. Don't do that, certainly not with a document you didn't expect.