How Can You Protect Yourself from Spyware and Viruses

Multiple Choice

How can you protect yourself from spyware and viruses?

A) visit lots of websites so as to confuse the hacker
B) use the same operating system for as long as you can as you have already set the security settings
C) when opening e-mail attachments, save them to your hard drive right away
D) perform regular backups and store these in a separate place