Computer Security ,Safety ,Ethics and Privacy

Computer Security ,Safety ,Ethics and Privacy

1. Safety

   • Backing Up – The Ultimate Safeguard
     • a duplicate of a file, program, or disk that can be used if the original is lost, damaged, or destroyed
     • Two Backup categories
       • Full Backup
       • Selective Backup
   • Wireless Security
     • In additional to using firewalls, some safeguards improve security of wireless networks
       • A wireless access point should not broadcast an SSID
       • Configure a WAP so that only certain devices can access it
       • Use WPA or WPA2 security standards
       • Change the default SSID
   • Health Concerns of Computer Us
     • Irritable when not at the computer
     • Overjoy when at the computer
     • Neglects family and friends
     • Back Pain
     • Eye Strain

2. Ethics and Privacy

   • Computer ethics
     • are the moral guidelines that govern the use of computers and information systems
   • Information accuracy is a concern
     • Some information on the internet can be invalid and incorrect
   • Green computing
     • Reducing the usage of electricity and waste while using the computer
   • cookies
     • Reason for cookie
       • Allow for personalization
       • Track how often users visit a site
       • Assist with online shopping
       • Scam
         • a scam where a perpetrator attempts to obtain your personal and financial information via spoofing
         • a scam in which a perpetrator sends an official looking e-mail message that attempts to obtain your personal and financial information
     • a small text file that a Web server stores on your computer

3. Computer Security Risks

   • An infected computer has one or more of the following symptoms
     • Music or unusual sound plays randomly
     • Operating system shuts down unexpectedly
     • Programs or files do not work properly
     • Screen displays unusual message or image
     • Available memory is less than expected
     • Unknown programs or files mysteriously appea
   • Botnet
     • a group of compromised computers connected to a networ
   • Denial of service attack (DoS attack)
     • disrupts computer access to Internet services
   • Back door
     • a program or set of instructions in a program that allow users to bypass security controls
   • Spoofing
     • a technique intruders use to make their network or Internet transmission appear legitimate