Even PDF attachments aren’t safe. If you receive an email from an unknown sender with a PDF attachment, be aware that trying to open it might launch an executable that can inject malware into your system. The attack produces a warning dialogue box, but users are accustomed to seeing, and ignoring, those in many situations….
Make sure your IE has the up-to-date patches (or switch to Firefox) and update to the latest Adobe Flash Potent malware link infects almost 300,000 webpages • The Register. A security researcher has identified a new attack that has infected almost 300,000 webpages with links that direct visitors to a potent cocktail of malicious exploits….