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Lesson sixteen: Computer Security A.) Definition of computer security 1. Computer security means protecting our computer systems and the information they contain against unwanted access, damage, destruction or modification. 2. We need to protect our computer from any intruder such as hackers, crackers and script kiddies. 3. We do not want strangers to read our email, use our computer to attack other systems, send forged e-mail from our computer, or examine personal information stored on our computer such as financial statements. B.) Types of computer security 1. Three types of computer security are a) hardware security b) software security/ data security c) network security C.) Hardware security 1. Hardware security refers to security measures used to protect the hardware specifically the computer and its related documents. 2. The examples of security measures used to protect the hardware include PC-locks, keyboard-lock, smart cards and biometric devices. 3. Besides these Cyber Laws, there are three other Cyber Laws being drafted D.) Software and data security 1. Software and data security refers to the security measures used to protect the software and the loss of data files. 2. Examples of security measures used to protect the software are activation code and serial number. 3. An example of security measure used to protect the loss of data files is the disaster recovery plan method. 4. The idea of this plan is to stored data, program and other important documents in a safe place that will not be affected by any major destruction. E.) Network security 1. The transfer of data through network has become a common practice and the need to implement network security has become significant. 2. Network security refers to security measures used to protect the network system. 3. One example of network security measures is firewall. With firewall, network resources can be protected from the outsiders. F.) Personal computer security checklist 1. In order to make sure our computer are secured, here are the computer security checklist to follow. a) Do not eat, drink or smoke near the computer. b) Do not place the computer near open windows or doors. c) Do not subject the computer to extreme temperatures. d) Clean the equipment regularly. e) Place a cable lock on the computer. f) Use a surge protector. g) Store disks properly in a lock container. h) Maintain backup copies of all files. i) Stores copies of critical files off sites. j) Scan a floppy disk before you open it. k) Do not open any unknown email received. Summary 1. Computer security is a process of preventing and detecting unauthorized use of the computer. 2. There are three types of computer, which are hardware security, software/data security and network security.
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