How to protect your system

1. Keep your web browsers and operating system up to date.
2. Use security software tools as your first line of defense.
3. Use strong passwords or strong authentication technology to help protect your personal information.
4. Do not open e-mail attachments from an unknown, suspicious, or untrustworthy source.
5. Back up your files frequently.
6. Exercise caution when downloading files from the Internet. Make sure that the Web site is legitimate and reputable. Verify that an anti-virus program has checked the files on the download site. If you have any doubts, don't download the file at all. If you download software from the Internet, be especially vigilant of free software, which often carries adware or other potentially unwanted content along with it. Always read the privacy policies and end-user license agreements (EULAs) for software you install, regardless of the source. Be especially wary of screensavers, games, browser add-ons, peer-to-peer (P2P) clients, and any downloads claiming to be “cracked” or free versions of expensive applications, such as Adobe® PhotoShop® or Microsoft® Office. If it sounds too good to be true, it probably is. Source: Macfee
7. Do not open messages or click on links from unknown users in your instant messaging program.
8. Delete chain e-mails and other spam from your inbox.