Security Overview
Computer security is important for all computer users. Information Technology Services encourages all users to install and maintain security software.
To protect your computer from viruses, worms, hacking attempts, and data theft, ITS recommends that you follow the guidelines listed below. ITS will block network access for users whose equipment has been compromised and poses a security threat to the network. If your network access has been blocked, you will need to resolve the problem and apply any relevant security patches in order to restore access.
Keep Security Updates Current
Both Microsoft and Apple release regular security updates for their operating systems (Windows and OS X respectively). You should check for security updates once a week. You can also configure your system to check for updates automatically. See Windows Security or Mac OS X Security for more information on configuring your system.
Maintain Secure Passwords and Accounts
It is important to create secure passwords (also known as strong passwords).
A secure password should contain:
- At least seven characters.
- At least one number or special character (for example, @ $ [ ] + ).
- At least one capital letter.
- At least one lowercase letter.
Make sure to set up unique accounts on your machine for each user. See Windows Security or Mac OS X Security for more information on configuring your system.
Use Caution with Email Links and Attachments
Scam artists and hackers often send infected email attachments or links to compromised websites. Make sure your email program automatically scans all email and attachments to keep your computer safe.
- Do not open attachments or click links in email from people you do not know.
- If the attachment looks suspicious, do not open the file. Save it to your computer and scan it for viruses. Make sure your antivirus software is up to date.
Install and Regularly Update Your Antivirus Software
USC provides free antivirus software for USC account holders on the software download page. If you already have an antivirus program, do not download another one, since these programs may interfere with each other. USC provides support and information on installing and maintaining Symantec Endpoint Protection (Windows) and Norton Antivirus (Mac OS X).
Although viruses written specifically for Mac OS X are uncommon, it is still a good idea to run antivirus software, especially to combat PC viruses attached to emails and cross-platform macro viruses, such as those aimed at attacking Microsoft Office programs. See Symantec Endpoint Protection for Windows or Norton Antivirus for Mac OS X for more information.
Install and Maintain a Firewall Program
A firewall protects your computer from unwanted network intrusions by hackers or self-spreading worms that infiltrate your computer through open network ports. Windows XP and Mac OS X have built-in firewalls. See Windows Security or Mac OS X Security for more information on enabling these on your system.
If you are running other versions of Windows such as Windows 2000, ITS recommends that you use a third-party firewall such as Symantec Client Security, Symantec Personal Firewall, or Zone Alarm. Symantec Client Security is available to USC network users from the software download page. ITS does not support altering the default configuration for Symantec Client Security. See Symantec Client Security (Windows Firewall).
Avoid and Remove Spyware
Spyware is a type of malicious program that runs invisibly and collects information about the person using that computer. For more information about avoiding and removing spyware, see the spyware documentation.
Ensure Secure Connections
Whenever you connect to the Internet or another computer on a network, data can be exchanged between your computer and the Web or your computer and another one on the same network.
Getting Help
ITS Customer Support Center provides support for software available on the software download page. Contact your software’s vendor or the vendor's website for support for other programs.
For questions, please contact the Customer Support Center at 213-740-5555 or send an email to consult@usc.edu.
Last updated: Friday, June 19, 2009, 14:16PM PDT