You can never protect yourself 100%. What you do is protect your self as much as possible and mitigate risk to an acceptable degree. You can never remove all risk.
Kevin MitnickThe methods that will most effectively minimize the ability of intruders to compromise information security are comprehensive user training and education. Enacting policies and procedures simply won't suffice. Even with oversight the policies and procedures may not be effective: my access to Motorola, Nokia, ATT, Sun depended upon the willingness of people to bypass policies and procedures that were in place for years before I compromised them successfully.
Kevin MitnickI use Mac. Not because it's more secure than everything else - because it is actually less secure than Windows - but I use it because it is still under the radar. People who write malicious code want the greatest return on their investment, so they target Windows systems. I still work with Windows in virtual machines.
Kevin Mitnick