• Thou shalt not use a computer to harm other people.
• Thou shalt not interfere with other people's computer work.
• Thou shalt not snoop around in other people's files.
• Thou shalt not use a computer to steal.
• Thou shalt not use a computer to bear false witness.
• Thou shalt not use or copy software for which you have not paid.
• Thou shalt not use other people's computer resources without authorization.
• Thou shalt not appropriate other people's intellectual output.
• Thou shalt think about the social consequences of the program you write.
• Thou shalt use a computer in ways that show consideration and respect.
Source: Computer Ethics Institute
http://ecommerce.hostip.info/pages/247/Computer-Ethics-Institute.html
