“just don’t click anything” that used to be good advice but not anymore.
You think you’re safe from malware since you never click suspicious-looking links, then somebody finds a way to infect your PC anyway. Security researchers have discovered that cybercriminals have recently started using a malware downloader that installs a banking Trojan to your computer even if you don’t click anything. All it takes to trigger the download is to hover your mouse pointer over a hyperlink in a carrier PowerPoint file.
Source: Malware downloader infects your PC without a mouse click
Geekhammer 