Computer Science / ICT Knowledge Home

  -           Definition of computer security Computer security is the protection of computer components such as hardware, software and data from unauthorized access. The need for computer security is as a result of a number of security breaches. -           Sources of security breaches Security breach is an act of breaking security policies, practises or procedures. When security in computer is breached, it may result in the damage of vital file, failure of certain hardware components e.g. keyboard, mouse, printer, hard disk, ram etc, altered software programs etc. The following are possible sources of security breaches ·          Computer viruses   ·          Hackers   ·          Poorly maintained computer network   ·          Poorly implemented or lack of ICT policy   ·          Carelessness. -           Computer viruses A computer virus is an executable program that is capable of replicating itself thereby causing great harm to files or other prog