Step 5: Make a note and use your computer safely 

Be aware of what you download

Free files such as cursors, screensavers, ringtones, and even software can be infected by viruses or spyware. Make sure to download only from trusted sources.

Free files may also be copyright-protected, so downloading them places you at risk for legal action. Learn to avoid illegal downloading and file-sharing.

Be aware of transfers via portable device

Viruses or spyware can infect your computer just as easily from a flash drive, mp3 player, or PDA as from an e-mail. A safer way to transfer: ask for an e-mailed file instead and scan it for viruses before opening.

Guard personal information

Scams by e-mail and phone may try to steal your social security number, passwords, and other personal information. These cons lead you to phony Web sites indistinguishable from legitimate ones. Remember, a legitimate company will not solicit for your information.

Sites such as eBay, PayPal, and most online banking sites have systems in place to help you guard against these scams. Find out what is being done to protect your information.

Be aware of suspicious IM messages

Viruses transmitted via IM are on the rise. Similar to e-mail, IM viruses can replicate buddy lists and send attachments or disguised links that send you to an infected site. Be careful to avoid IM message links and attachments unless you are sure of their contents.

Protect your ‘@northwestern.edu’ e-mail address

Northwestern's extensive E-mail Defense System (EDS) protects you against unsolicited e-mails. But you can also help deter more coming to your Inbox. Avoid posting your e-mail address to public Web sites, mailing lists, message boards, or other places where e-mail harvesting programs can easily pick it up. Even better, use a free e-mail account when you are required to provide an e-mail address.

Make regular backups

Theft, viruses, or other computer accidents can rob you of important computer files and data. Make regular backups to an external hard drive, server space, Web-based storage, CDs, DVDs, or flash drive. Do this on a regular basis and you will be protected from unexpected computer data losses.